Weird Textures problem

[Nem]

Hi guys,
I've just downloaded the last full release for Windows of Vdrift and I'm having some strange problems.

In some tracks the texture are loaded but not always displayed (eg. neurburing). I know that the texture are loaded since sometime, for few frame, I can see them.

I've tried to change all the possible Display options, from the worst to the best with no results.

I've also deactivated the antivirus, firewall, spyware tools and a lot of others programs.

My system is:

AMD2600+
ATI Radeon 8500
Windows XP SP2
vdrift 2007-03-23-full

Any Ideas?

Thanks in advice,

Nem