Windows XP display problem

I installed a game onto my PC running Windows XP. I didn't know it at the time, but it ran on large graphics and 256 colors. This caused a big problem with my computer. It is no longer running, but my display is big and all the text is now bold. I can't change it back. My display settings are set at 1024 x 768 and my colors are at 32 bit.

Besides doing a reformat and install of Windows XP, how do I change it back? This is driving me nuts!!

Restart

I tried that. It doesn't do any good

Check the DPI settings. Goto Display Properties -> Settings -> Advanced -> DPI Setting. It should be set to 96 DPI (Normal) then click OK and try the Appearence tab -> Font size and set it to normal.

I checked that already. Everything is where it should be.