Hi
Yes, seems very familiar. I have the same kind of graphical problem.
I have been asking gentlemen at Simhq forum for help but it seems that it is related to XP being old and supporting only DX9.
Nobody at this point knows of any other reason.
And these experiences where just by updating to Win7 there has been no problem supports this a bit.
So we are getting more rare by day, us dinosaurus using WinXP
Thanks
Juhhe