VISTA in grayscale issue
A colleague's VISTA PC suddenly went grayscale after switching users.
The strange thing is that it is colour as it boots up but when the VISTA OS login screen appears everything is monchrome. Has this happened to anyone else*? What could be done to resolve this issue? All cables are securely in place - I have even re-loaded the monitor driver. Any help would be greatly appreciated.
*Since the original posting I have discovered another unresolved instance of this issue:
http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=1174476&SiteID=17