[HELP] nvidia 8xxx mouse & system lag - a new bug?

[kalel83]

if I enable my 8500gt 512mb I get system + mouse lag

 

I've tried:

efi with efistudio from leopard

graphicsenabler=yes

nvenabler from osx86project

natit

removing appleupstreamuser and rebuilding extensions.mkext

disabling appleupstreamuser

booting with cpus=1

disable cool and quiet

tried voodootscsync though it is build only for core2duo

 

none of them fix the issue. the bug happens with a logitech mouse, bluetooth mouse, and apple mighty mouse

 

no matter what I try, the bug is there.

 

this issue happens in leopard as well, with the only fix of removing Geforce* and NVDA* kexts from /S/L/E and installing nvidia kexts with 9f9installer.pkg. This dosn't work with Snow Leopard as these kexts cause it not to boot. that leopard fix can be read about here.

 

what should I try?