i have 4 users on this ere pc , and for some reason on my desktop windvr and c&c generals doesnt work ????????? tried uninstalling and reinstalling again no difference ,and on one other the desktop resolution drops down to 640*480 8 bit when he logs in ??? there is nothing running on any desktop that is different to any other i've run task manager and checked that there are 4 instances of everything so whats going on ?