< Some of my Windows 95 Users are complaining that their systems are freezing up when they click on the small x on the top right side of their windows to clos >
Please get more details if you can, I'm not able to reproduce that here.
I had a similar report from a user that was "Double-Clicking" the close box or a maximized window, and this would close the window, then send a Close message to the underlying window ( in this case the BBS Desktop ).