Yes I'm currently running the 163,75 drivers. Well I dont know who else manufactured it, but if it helps I did the PC from Alienware.

Alienware? Still warranteed?

I would contact them-- to get the issue "registered"

Right I emailed their tech support, will keep you updated...I dont suppose you have any ideas what it could be?

There are quite a few possibilities-- from a bad driver-- to failing hardware-- for the prices they charge @ alienware-- they should send a tech to your house to fix it for you. It has to be a quite new machine-- it has Vista on it

have you got a model number?

You mean for the PC itself? Well its the Aurora 7500 customized with bits costing £3500, so yeah I totally agree that they should be coming here lol.

Seems that it was a Graphics Driver issue after all. In the end, I had to use a quite older driver to make it work properly.

Vista & Driver issues...Some say there's no problem-- I think there is.
I read today that some major corporations are going to skip Vista altogether... and wait for Windows "7"-- that would not make Redmond happy.

PC World - Will Businesses Skip Windows Vista Altogether?