benq screen problems

Two monitors + error resulotion orientation?
HI! I have two monitors connected to my PC atm G2222HDL BenQ LED (primary) and an HP f2105. but I have a problem, restarting the PC, everything works fine until I connect the screen, then take a minute and the screen goes black and changes BenQ HP Resolution screen 1920×1080 to 1680×1050. I have tried many things like the UN to connect the screen, use another cable, you have the latest drivers for my graphics card (Nvidia Geforce GTS 250 with HDMI and DVI January 1 VGA port, now is the BenQ with HDMI and DVI HP) I've had this problem for about 4 months or more did not mind that, but now is so annoying … Well, I want to help solve it. / / Martin received Win7 prefer a solution that no other software req Win7 now I have a ATI Radeon 5850, remains the same problem
try this: http://www.realtimesoft.com/ultramon/
BenQ W600 & 110″ Bed Sheet Canvas Screen
