Window Manager

[Ken Kastella]

We have a 4D70/GT and it appears the window manager is acting strangely.  
Background windows have started showing through the foreground window.  It
is as if all the pixels are not being drawn in the foreground window.  We
re-booted the machine and when it was coming down it gave the message:
"Window manager was killed by signal 15".  Any ideas about what is going on
would be appreciated.  



		Thanks,	
			Ken Kastella