My LCD,SyncMaster 226BW has 2 input slots,VGA and DVI
My Xbox360 connected trough DVI input,and PC connected trough VGA cable with DVI adapter.

I tried to connect the cable that I got with the monitor from VGA input to VGA output at my video card,but it didn't worked at all,black screen on monitor.
So I managed to use VGA to DVI adapter and connect it to DVI output.
Now,when I turn 1280x800 resolution,monitor itself tries to auto-configure it,and makes the image a bit out of lines and the image itself is a bit blurry..
When I connect monitor with DVI cable,that resolution works perfectly.
It only happens with that specific resolution.
Any ideas?