I have an ATI 4650 display card in a Windows XP Pro SP3 box driving two LCD monitors at their native resolutions of 1440x900 and 1028x1024 respectively, both at 32bits. After a while, however, I will start having issues where windows don't refresh correctly, parts of the menu disappear. I even once had Nero 9 tell me it was unable to allocate "bitmap cache", which suggests there's something going on in the 2D display area. Naturally rebooting fixes it, but I think killing resource hogs like Firefox helps too. I've updated to the latest ATI driver, but the issue persists. I've got plenty of RAM (4G with the /3G and /PAE switches). So how do I tell Windows to set aside more memory for my 2D display? (The video card has 1G, though I know that only counts in rendering & 3d, not in standard 2D display).