Upgraded my PC and cannot play it anymore?

Well it is sort of went like this...
I replaced a new Power Supply, added 1 more ram and a new video card. It is NVIDIA 9600 GT.
Then I installed the new drivers that came from the cd.

First time I played on PSO PC, it was fine. Then after that I get an error or crash whenever I try to step on Pioneer 2. I can play it if I put my settings to low but that doesn't work all the time.

I reinstalled everything but nothing. I also try to put back the old the textures from "PSO_PC_Graphics_Fix." I even replace the pso.exe (fullscreen/window/window w/mouse.) Nothing.

Any ideas please?

lmfao, is it something like, display driver nvlddmkm has stopped responding and has fully recovered? Yeah its a common problem, what you want to do is to go to here, and download the latest drivers, I had problems initially with this error and during c-mode its a pain in the ass, (Gilgamesh and Wing can attest to this XD) but in any case updating the drivers to the latest version was the solution for me, as my card came with 101.65 but like 185.68 was out or something, anyway I looked up your card and these drivers should be the most up to date, best of luck with the solution here.

T3h Linkzorz: http://www.nvidia.com/object/win7_winvista_32bit_190.62_whql.html

for 64 bit vista: http://www.nvidia.com/object/win7_winvista_64bit_190.62_whql.html

and for XP and XP 64 bitz respectively: http://www.nvidia.com/object/winxp_190.62_whql.html
http://www.nvidia.com/object/winxp64_190.62_whql.html

For any other OS just use the search function on the site, here: http://www.nvidia.com/Download/index.aspx?lang=en-us

I think you might hate me now but it seems I forgot to restart my computer...

Works fine now. I can guess why it messes up though.

lol its alright, at least you can play, I knew the site and all the links beforehand so it was a simple copy paste so no worries