Maximum resolution decreased?!

ScorpionX108

Honorable
Mar 2, 2014
53
0
10,640
well, i installed Call of Duty modern warfare 2 but it said "Error during initialization:
Video card or driver doesn't support UBYTE4N vertex data." so i tried installing a new driver which is intel graphics media accelerator but after installing and restarting my maximum resolution decreased from 1280x800 to 1024x768 and i can only change the resolution from 800x600 pixels to 1024x768 pixels. So, i uninstalled the driver but it didn't work, then i tried system restore and that didn't work either, so pleeeeeeeeeeease tell me what to do. i run on win vista ultimate 32-bit service pack 2, graphics card Mobile Intel(R) 945 Express Chipset Family. plz do i realize i'm not good using pc's so plz explain as much as u can. thx in advance.
 

ScorpionX108

Honorable
Mar 2, 2014
53
0
10,640


i tried that but it didn't work.


but after that i tried windows update and it returned to normal!! but thank u for ur help!