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How To Turn Hardware Acceleration Back On ?


Ok, i just installed windows 7 professional 64-bit on my laptop. Relevant specs are as follows:

Processor: intel core 2 duo t9800 @2. 93ghz
Ram: 4. 00 gb ddr3
Graphics card: ati mobility radeon hd 4670 w/ 1. 0 gb ddr3 dedicated graphics memory

Even though i had a few problems with windows vista home premium 64-bit (what i had on the laptop before i upgraded), i never had any problems playing games or other 3d applications because of my gpu's hardware acceleration. For example, i could run google earth with my processor never going above 15% usage.

When i installed windows 7, i was very impressed at how much faster it was than windows vista. It was very noticeable in everything from how fast it started up and shut down to how fast it loaded all the files in a folder. It was almost like getting a brand new computer.

That is, until i fired up celestia, a free 3d program that renders the solar system and about 2. 1 million other objects in a 3d model. I had never had any problems with this when i used windows vista; it ran perfectly smoothly and my cpu never even topped 12%. Much to my dismay, it started dropping frames left and right and the orbits of moons were popping in and out as i got closer to them. I checked the task manager and my cpu was hitting 89%! And this was despite the fact that the amount of ram in use was almost 300mb less than it had in windows vista.google earth ran with similar numbers.

I did some poking around and i discovered a very nasty fact: my hardware acceleration was turned off and there was no way for me to turn it on. Ati's control program for windows 7 doesn't even include an option for it. I also checked the directx settings and they are all enabled to max settings. Still no dice.

My question to you is: how do i turn the hardware acceleration back on? Can i turn it back on? If not, i'll have no choice but to go back to windows vista, because without hw acceleration, there's no way i'm going to be able to play any games more demanding than doom 3 or counterstrike if i can't even run celestia without problems.


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