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I recently upgraded from 32bit Windows 7 to 64bit so I could use all the RAM in my laptop.

Everything works great except 3D, which stutters like crazy. This worked fine when I was on 32bit Windows 7.

I have the latest driver for the Quadro FX 770M that is in my Dell M4400. I got this via the NVidia utility on their site. I also tried the Dell driver from support.dell.com.

Both give the same results.

I have all the drivers installed for the motherboard, hard disk etc as given on the dell support page.

Does anyone else share this issue with 3D on 64bit Windows 7.

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Get the latest driver from NVidia not from Dell. – Will Oct 21 '09 at 17:52
I remember nvidia having terrible Windows Vista support until it had been out for about 6 months, especially since most Vista crashes were due to nvidia drivers. I hope they're not pulling the same stunt again in Windows 7. – Will Eddins Oct 21 '09 at 19:54
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4 Answers

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The latest nVidia drivers (190/191) cause some stuttering with Windows 7 in certain games. Roll back your drivers to 186 and it should be fine. I'm waiting for a fix myself.

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In the nvidia control panel there should be a 3d settings tab. Make sure all these settings are correct.

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You could try uninstalling the drivers and then run Driver sweeper, then install the Nvidia drivers again.

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Try it with Aero disabled. I know that I get choppy streaming Netflix video if I don't disable Aero.

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Good idea but it didn't fix it. Didn't chnage one bit... :( – Greg B Oct 22 '09 at 11:36
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