Originally Posted by freestyler105
It's probably your graphics card. Celerons are also terrible processors. If you can get a Core 2 Duo, get it, but getting a Pentium D would be better than your current Celeron.
umm he mentioned rollercoaster tycoon and you really dnt need a graphics card to run that i ran that on my 5 year old HP with onboard graphics so its def his processor,
VISTA AND CELERONS REALLY DONT MIX,
you def need a processor upgrade pentium D's are fine with vista i got my 915 running at 3.2Ghz with 2Gb RAM and it runs vista good.
you would be better off with a C2D but if you can only afford a P D that will do ya fine for now