As always when I reformat dives I always wipe the drive first using a US DOD 5220.22M method reason for this is just in case matters where if you have a virus or malware in which if you don't wipe first they could remain on your computer. Ok now what I recommend in the mean time is this, first is this put in your XP disk click start click run and type "sfc /scannow" without quotes a protection window will come up if you did this right, after the protection windows disappears then take out xp disk then reboot (WARNING DON'T LEAVE IN DISK BEFORE REBOOTING!!). what this will do is replace any corrupt system files. Ok next thing to do if that don't work is look for an updated driver usually could be found at computer manufacture website of the maker of the graphic controller (example www.intel.com) you can find this info under system properties then hardware devices.
I had to get an authorized version of xp pro, my computer was hijacked. I reformatted & installed the new disc but the monitor resolution is terrible. I had taken the cnet course for this a few months back but can't get to that. Now, I need to know what to do or if I can go back to any class I took with cnet? Thanks for any help. I have Dell optiplex gx270,2.80GH, 256 MB ram.