Posted 11 February 2007 - 07:31 PM
Ok, this isn't too bad. I just had to do this the other day on one of my machines because one of Microsofts critical updates fubared the display, and when I tried to reinstall the driver, it actually removed it...
Anyway, all you need to do is open regedit (Start, run, type in regedit. Once it opens, export a backup to your C: directory (just in case things go badly). (File, Export, and choose a name that you can easily remember.)
Now, the next part is to HKEY_CURRENT_CONFIG\System\CurrentControlSet\Control\VIDEO. Once you expand the key, you may find several longish looking keys that represent video drivers. Finding the correct one will take some trial and error, but when you expand the key, you will see some settings that will say 'Default Resolution X', and 'Default Resolution Y'. Under yours, they will probably say 600 and 800. You need to edit those two settings.
Right click on Default Resolution X, and then select Modify. Select 'Base Decimal' and put in 1024, then save the key.
Right click on Default Resolution Y, and then select Modify. Select 'Base Decimal' and put in 7684, then save the key.
Reboot, and see if that helps. ****VERY IMPORTANT**** If your resolution is only designed to handle up to 1024*768, do not attempt any settings higher than that. If you picked the correct one, the display will change. If it didn't, restore the keys and try another key. It is important to only change one display set of settings at a time. On my computer, there are three sets of values. One is for the onboard card, one is for my PCI video card, and one is a default set.