Choppy HD4850 on Windows 7

Hello

Since i've installed windows 7, my graphic card is always at full activity when I run a not so 3d-intensive game and when I open it 2 times, it goes really slow and choppy.

The thing is, on windows xp, i could open 4 or 5 times the game without any lag

I suspect the windows 7 driver is the cause of my problem

When I check my gc with gpu-z, i see the catalyst drivers being used but when I run dxdiag, here's what i see



Is there some kind of conflict between ati drivers and HDDM 1.1?

I've tried HDDM 1.1, catalyst 9.8 and 9.9 but they all give me the same problem.

I'm starting to get really desperate and considering buying windows vista. Could somebody please help me?


MORE INFO:

Windows 7 ULTIMATE
e4300 @ 3ghz
ballistix 4gb ram
Sapphire HD4850 512mb
WD 250gb

My bad, i thought the uk and us forums were different.

The game is called Knight OnLine, it is about 10 years old and yes it supports windows vista and 7 because i know a lot of people using 5/6 instances of the game with no lag at all.

is that a crossfire setup or a single card with 2 gigs of memory?

Some people get so addicted to MMOs that it's not enough for them to just play it all the time, they have to play it all the time as several avatars.

Maybe try installing updated drivers.

I am not familiar with the directx diagnostic tool but I assume that it is displaying amount of video memory as 2 gigs. Why is it doing so.

It most likely displays as 2Gbs of memory because of the integrated chip. My old computer did that for some reason. I don't think you can actually use the integrated memory, but it still shows it. As for your problem, try a fresh install of the card like someone else said.

I've already done that but it doesn't work. I'm out of solutions, that's why i posted here

Btw, thegreatgrap, what do you mean?

bump