Hello,

yes it is a USB Mouse. I tryed a few different Bios Settings , but nothing happend.
In my Bios there is no options for Shared Memory.

The Card is a Sparkle Nvidia 9600 GT, 512 Mb. The Problem also apperd with a Sparkel 9500GT 512mb and an Nvidia 7600GS , 215 MB.

The Strange.... in the past , the old Card ( 7600 GS ) worked well under a IDenebV1.3 10.5.5 Instalation.

I also found another strange behavore. When Aqua starts, the mouspointer is in the upper Left corner. So i can click on the Apple Symbol and then chose Logout per Keyboard. In the Login Screen there is no Mouse Chopps, no lags. Then i log in again , a few seconds i have a normal mouse , then it begins.
This is a blank system , no tools , nothing that could do that. o.O

And Yes, i update using the Apple Updater.

I installed only the Kernel, Dontsteel and Via Kext. I removed IntelPowermanagmend.