Dual display help

[gyasih]

I have Tubgirls's 10.4.10 installed on my computer

 

Specs

AMD x2 3800 (oc to 2.27)

Nvidia 7600gt

Asus A8n-Sli Deluxe

2 Gigs of ram

Phillips DVR-RW

2 IDE HDD

 

I want to do dual display and it doesn't work. Dual screens showed up when i installed but then screen went blank. QE/QI is supported. I have LG 20" and 19" Gateway, both are connected via DVI to VGA adapter. This setup works on Vista.

 

Thanks