all GUI apps crash on window

Hello,

ProjectCenter crashes on ming64 - I did not yet check if it was any of 
the latest changes we worked on. But the stracktrace doesn't tell me that.
Very strange... 2 days ago (on a different install/computer) everything 
worked!

#10 0x00007fff98373c92 in USER32!CreateWindowExA () from 
/c/WINDOWS/System32/USER32.dll
#11 0x00007fff528d54a3 in -[WIN32Server(WindowOps) window::::] 
(self=self@entry=0x17f9e8aa350,
     _cmd=_cmd@entry=0x7fff3e8a6d00 <_OBJC_SELECTOR_TABLE+3712>,
     frame=<error reading variable: Cannot access memory at address 
0x0>, type=140734260548448,
     style=<optimized out>, screen=<optimized out>) at WIN32Server.m:1611
#12 0x00007fff3e6b2fb5 in -[NSWindow _initBackendWindow] 
(self=0x17f9e9c5430, _cmd=<optimized out>) at NSWindow.m:999
#13 0x00007fff3e6b0bed in -[NSWindow 
initWithContentRect:styleMask:backing:defer:] (self=0x17f9e9c5430,
     _cmd=<optimized out>, contentRect=..., aStyle=<optimized out>, 
bufferingType=<optimized out>,
     flag=<optimized out>) at NSWindow.m:1157
#14 0x00007fff3e6a9912 in -[NSWindow 
initWithContentRect:styleMask:backing:defer:screen:] (self=0x17f9e9c5430,
     _cmd=<optimized out>, contentRect=..., aStyle=64, bufferingType=0, 
flag=0 '\000', aScreen=0x0) at NSWindow.m:1205
#15 0x00007fff3e513d72 in -[NSApplication(Private) _appIconInit] 
(self=0x17f9e81f2f0, _cmd=<optimized out>)
     at NSApplication.m:3884
#16 0x00007fff3e5167ec in -[NSApplication _init] (self=0x17f9e81f2f0, 
_cmd=<optimized out>) at NSApplication.m:932
#17 0x00007fff3f92d289 in -[NSObject(NSThreadPerformAdditions) 
performSelectorOnMainThread:withObject:waitUntilDone:modes:] 
(self=0x17f9e81f2f0, _cmd=<optimized out>, aSelector=0x7fff3e767c60 
<_OBJC_SELECTOR_TABLE+3552>,
     anObject=0x17f9e81f2f0, aFlag=1 '\001', anArray=0x17f9e8180f0) at 
NSThread.m:2123
#18 0x00007fff3f92f205 in -[NSObject(NSThreadPerformAdditions) 
performSelectorOnMainThread:withObject:waitUntilDone:]
     (self=0x17f9e81f2f0, _cmd=<optimized out>, aSelector=0x7fff3e767c60 
<_OBJC_SELECTOR_TABLE+3552>,
     anObject=0x17f9e81f2f0, aFlag=1 '\001') at NSThread.m:2134
#19 0x00007fff3e514f09 in -[NSApplication init] (self=0x17f9e81f2f0, 
_cmd=0x7fff3e767740 <_OBJC_SELECTOR_TABLE+2240>)
     at NSApplication.m:986
#20 0x00007fff3e50b4f3 in +[NSApplication sharedApplication] 
(self=0x4b11dffbf0, _cmd=<optimized out>)
--Type <RET> for more, q to quit, c to continue without paging--
     at NSApplication.m:858
#21 0x00007fff3e4f1483 in NSApplicationMain (argc=<optimized out>, 
argv=<optimized out>) at Functions.m:87
#22 0x00007ff65d3013c1 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

it is _appIconInit which is perhaps supect... on windows?

Then I tried Ink... it dies the same way. I fear this means "all apps crash"

Riccardo