Installation problems: Mouse does not work during install!

[crverik]

Hey there,

This is my first post on this forum. I decided to take a look here because my threads at InsanelyMac
got ignored for 2 times already. I thought maybe there were more persons at InfiniteMac that are
willing to help

Specs:
CPU - Intel 2 Quad Q8200
Motherboard - Biostar GF7100P-M7S
Chipset - nVidia 7100 (northbridge) / nForce 630i (southbridge)
Audio (onboard) - Realtek ALC662
Video - nVidia GeForce 9500 GS 512mb
Ethernet (onboard) - Realtek RTL8111B
HD - Samsung HD642JJ 600gb (SATA connected)
Memory - 3gb DDR2 Ram Qimonda
DVD - LG® GH22LS30 (SATA connected)

The problem was "still waiting for root device". I got passed this by switching the bios setting from
IDE to AHCI. But then I stumbeld upon another problem: the mouse does not work during installation.
I tried toggling the USB Legacy option in bios, but without any succes.

I've got windows vista on the 1st partition, and have made a 50gb (2nd) partition for OSx.

Does anyone knows how to point me in the right direction?
Thanks in advance for your help