[XFCE 0000014]: Not visible contents while moving/resizing windows freeze computer

The following bug has been ASSIGNED.
=======================================================================
http://bugs.xfce.org/view_bug_page.php?f_id=0000014
=======================================================================
Reporter:                   mrtout
Handler:                    olivier
=======================================================================
Project:                    XFCE
Bug ID:                     0000014
Category:                   xfwm
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     assigned
=======================================================================
Date Submitted:             2003-11-18 06:09 GMT
Last Modified:              2003-11-18 12:06 GMT
=======================================================================
Summary:                    Not visible contents while moving/resizing windows freeze computer
Description: 
Visible contents is quite ugly with pseudo-transparency terminals when
moving and with complex hight-level widget layouts when resizing.
So there is an option for disable this, but when I move or resize windows
everything stops : no gkrellm update, no song title scrolling with xmms
and even no music at all if I wait.
When release the mouse button, apps start again.
=======================================================================