Oddball vista issues with SLI

Juddog

Diamond Member
Dec 11, 2006
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Ok here's the deal - upgraded to Vista 64 bit. Spent days trying to get all the drivers working,etc.. The majority of games so far run great, but for some reason some demo's and some games seem to have a stuttering issue where they appear to be running a lot slower than Vista 32-bit. Has anybody here experienced anything like this? The other weird part is that I hear a crackling / fizz type noise on the speakers, but it only happens with certain games and demos and not others.

Current setup:
E8500 Intel proc @ 3.16 Ghz
Dual 8800 GT's, stock speed, 512 MB each
4 GB RAM
Vista 64-bit

Demos that have the issue: Many of the nvidia demo's such as Adrianne, Human Head, Mad Mod Mike, etc.. Other nvidia demo's run fine, such as Dusk.

Note: I have updated all of the latest drivers. I installed the creative AL support package (x-fi sound card), running latest Nvidia drivers. This ONLY happens in 64 bit Vista, not in 32 bit. The human head / cascades demos are directX 10 I believe.