Startup problem

[Chimpsta]

When I start the game it starts to load and the startup picture of the kart appears, then it freezes and stops responding!
Does anyone have the first clue on what it is?
Cheers,
Chimpsta

[Stark]

System specs? Tried to reinstall? 

[Chimpsta]

already tried reinstalling

Windows vista
1.5GHz
not sure others (believe above minimum requirements)
Cheers,
Chimpsta

[PiBoSo]

Please make sure graphics drivers are updated.

[Chimpsta]

Thanks PiBoSo, it works perfectly now! 
Cheers,
Chimpsta

[CruzCredo]

 

I also have problems starting the game (Beta 3 version).
When trying to start, the screen resolution is changed, but the message "kart.exe stopped working." After a few seconds the screen returns to the desktop.
I have tried reinstalling several times.
The drivers for my video card is updated.
What do I do?
Thank you.

Intel Core 2 Duo 1.86 Ghz
4 Gb RAM
HD with 200 Gb free
Radeon X1950 512 Mb
Windows 7 Ultimate