i want to advise that GT4 Pal with latest builds has a BSOD problem.
THe game start, i choose a car and a race. The race start ( with the usual black and white points ) i can see the clear graphic of cars and tracks.
After two or three seconds the games stops, after few seconds again the mouse freeze and then BSOD pointing at nvdisp_4.dll ( my nvidia driver for graphic card )
Before it was possible to complete a race.
I'm using Pcsx Playground latest builds and gsdx from 883 to 888.
I think this is worse than normal, so if you want more detail to fix this i will try to help.
(i say worse because i get a complete system lockup , not just a pcsx2 crash )