Mouse freeze problem with wide screen LCD

Hi

I've posted erlier a question regarding problems I had during the resolution setup of my new ACER AL1916W ACER wide screen LCD.

you can see it here http://yedda.com/questions/7353211340117/

The screen works wondefully and resolution is great, but anoter problem poped: my mouse went crazy. it frezzes many times - and I need to reboot the computer. nothing else works. rest of the things work - I can use the keyboard and move between applications using alt+TAB.

sometimes it also doing strange things like jumping to spots and activating things like applications or buttobs.

I suspect it has got to do with the mouse buffer which maybe needs to be enlarged in order to cover a larges number of pixel due to the high resolution I'm using (1440X900).

I tried to enlarge mouse buffer in the registery according to this post:

http://www.winguides.com/registry/display.php/653/

but it doen't solve the problem.

the changes i have done when resolving the resolution problem is to install the  acer driver and to upgrade the  graphic card driver (see my other post of details). I have also set the mouse speed to higer value but then return it back to the default.

Has anyone ran into this problem before? does my guest of mouse buffer problem sounds reasonable?

Please help --  I'm desperd.

Tx

Yuval.