What is causing this?

This kind of crash happens all the time for me with every recent version of
Mozilla I've tried lately.  I am not sure if it is a problem with one of the 
libraries on my system or Mozilla itself.  I search for these bugs and some 
say they are "RESOLVED" but I don't see how.

The problem seems to be aFontMetrics is null, AFAICT. 


--WEBSHELL == 7
CSS Error (http://www.google.com/search?q=timeout+waiting+sendmail&hl=en&lr=&start=10&sa=N :21.31): Error in parsing value for property 'cursor'.  Declaration dropped.
CSS Error (http://www.google.com/search?q=timeout+waiting+sendmail&hl=en&lr=&start=10&sa=N :24.2): Selector expected.  Ruleset ignored due to bad selector.
CSS Error (http://www.google.com/search?q=timeout+waiting+sendmail&hl=en&lr=&start=10&sa=N :25.0): Unexpected end of file while searching for 'closing } of invalid rule set'.
Document http://www.google.com/search?q=timeout+waiting+sendmail&hl=en&lr=&start=10&sa=N loaded successfully
--DOMWINDOW == 8
CSS Error (http://www.redhat.com/css/homepage.css :334.13): Error in parsing value for property 'cursor'.  Declaration dropped.
CSS Error (http://www.redhat.com/css/homepage.css :339.13): Error in parsing value for property 'cursor'.  Declaration dropped.
CSS Error (http://www.redhat.com/css/homepage.css :1401.0): Error in parsing value for property 'font'.  Declaration dropped.
CSS Error (http://www.redhat.com/css/homepage.css :2040.0): Selector expected. Ruleset ignored due to bad selector.
CSS Error (http://www.redhat.com/css/homepage.css :2050.0): Selector expected. Ruleset ignored due to bad selector.
###!!! ASSERTION: font metrics should not be null - bug 136248: 'NS_SUCCEEDED(rv)', file nsDeviceContext.cpp, line 684
Break: at file nsDeviceContext.cpp, line 684
###!!! ASSERTION: no font metrics: 'nsnull != aFontMetrics', file nsHTMLReflowState.cpp, line 2106
Break: at file nsHTMLReflowState.cpp, line 2106

Program /drives/sg3/mozilla-test/mozilla-bin (pid = 6092) received signal 11.
Stack:
nsProfileLock::FatalSignalHandler(int)+0x00000080 [/drives/sg3/mozilla-test/components/libprofile.so +0x0002C6D0]
UNKNOWN 0xffffe420
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x0028F540]
nsHTMLReflowState::CalcLineHeight(nsPresContext*, nsIRenderingContext*, nsIFrame*)+0x0000003B [/drives/sg3/mozilla-test/components/libgklayout.so +0x0028F61B]
nsBlockReflowState::nsBlockReflowState(nsHTMLReflowState const&, nsPresContext*, nsBlockFrame*, nsHTMLReflowMetrics const&, int)+0x00000286 [/drives/sg3/mozilla-test/components/libgklayout.so +0x0025BA96]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x00253EBB]
nsBlockReflowContext::ReflowBlock(nsRect const&, int, nsCollapsingMargin&, int, nsMargin&, nsHTMLReflowState&, unsigned int&)+0x000002A0 [/drives/sg3/mozilla-test/components/libgklayout.so +0x0025A720]
nsBlockFrame::ReflowBlockFrame(nsBlockReflowState&, nsLineList_iterator, int*)+0x00000331 [/drives/sg3/mozilla-test/components/libgklayout.so +0x0024B681]
nsBlockFrame::ReflowLine(nsBlockReflowState&, nsLineList_iterator, int*, int)+0x00000121 [/drives/sg3/mozilla-test/components/libgklayout.so +0x00250F11]
nsBlockFrame::ReflowDirtyLines(nsBlockReflowState&)+0x0000049D [/drives/sg3/mozilla-test/components/libgklayout.so +0x00251B0D]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x00253FA4]
nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, nsHTMLReflowMetrics&, nsHTMLReflowState const&, int, int, unsigned int, unsigned int&)+0x00000097 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002662E7]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x0028935A]
nsFrame::BoxReflow(nsBoxLayoutState&, nsPresContext*, nsHTMLReflowMetrics&, nsHTMLReflowState const&, unsigned int&, int, int, int, int, int)+0x000002D7 [/drives/sg3/mozilla-test/components/libgklayout.so +0x0026C907]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x0026FB9F]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x003973BD]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x00394176]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x003973BD]
nsBoxFrame::LayoutChildAt(nsBoxLayoutState&, nsIFrame*, nsRect const&)+0x0000009C [/drives/sg3/mozilla-test/components/libgklayout.so +0x0039965C]
nsGfxScrollFrameInner::LayoutBox(nsBoxLayoutState&, nsIFrame*, nsRect const&)+0x0000002B [/drives/sg3/mozilla-test/components/libgklayout.so +0x0028147B]
nsGfxScrollFrameInner::Layout(nsBoxLayoutState&)+0x00000183 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002845F3]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x002855F5]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x003973BD]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x00399C8B]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x0027FC48]
nsContainerFrame::ReflowChild(nsIFrame*, nsPresContext*, nsHTMLReflowMetrics&, nsHTMLReflowState const&, int, int, unsigned int, unsigned int&)+0x00000097 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002662E7]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x002F49C2]
IncrementalReflow::Dispatch(nsPresContext*, nsHTMLReflowMetrics&, nsSize const&, nsIRenderingContext&)+0x00000119 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002C11D9]
PresShell::ProcessReflowCommands(int)+0x000002B6 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002D0BB6]
ReflowEvent::HandleEvent()+0x00000145 [/drives/sg3/mozilla-test/components/libgklayout.so +0x002DBFC5]
UNKNOWN [/drives/sg3/mozilla-test/components/libgklayout.so +0x002D0EDD]
PL_HandleEvent+0x0000004B [/drives/sg3/mozilla-test/libxpcom.so +0x000DA3AB]
PL_ProcessPendingEvents+0x00000080 [/drives/sg3/mozilla-test/libxpcom.so +0x000DAE40]
UNKNOWN [/drives/sg3/mozilla-test/libxpcom.so +0x000DD58B]
UNKNOWN [/drives/sg3/mozilla-test/components/libwidget_gtk2.so +0x00033E45]
UNKNOWN [/usr/local/gnome26/lib/libglib-2.0.so.0 +0x0004A23D]
g_main_context_dispatch+0x000001CF [/usr/local/gnome26/lib/libglib-2.0.so.0 +0x0002450F]
UNKNOWN [/usr/local/gnome26/lib/libglib-2.0.so.0 +0x000260CE]
g_main_loop_run+0x000001AE [/usr/local/gnome26/lib/libglib-2.0.so.0 +0x0002638E]gtk_main+0x000000B3 [/usr/local/gnome26/lib/libgtk-x11-2.0.so.0 +0x00114413]
UNKNOWN [/drives/sg3/mozilla-test/components/libwidget_gtk2.so +0x00034872]
UNKNOWN [/drives/sg3/mozilla-test/components/libnsappshell.so +0x0003DAC8]
UNKNOWN [/drives/sg3/mozilla-test/mozilla-bin +0x0000637F]
UNKNOWN [/drives/sg3/mozilla-test/mozilla-bin +0x00006B65]
__libc_start_main+0x000000F0 [/lib/libc.so.6 +0x00014F10]
Sleeping for 5 minutes.
Type 'gdb /drives/sg3/mozilla-test/mozilla-bin 6092' to attach your debugger to this thread.

-- 

Fred

Error Loading Explorer.exe
You must reinstall Windows.