Thx for helping :)
yes I have three exactly identical LG 19" monitors.
I will try to check the matrox software more in debt.
Here is a picture of my 2400*600 desktop. The weird thing is that its not covering the whole space...
I will tell you more after uninstalling/reinstalling Matrox Powerdesk software.
http://img402.imageshack.us/i/desktopok.jpg/
EDIT :
After some tries, Matrox software only offer me 800*600 (3x)
CCC driver is settled like that :
- Desktop properties : 2400*600 60hz
- Advanced Display settings : (Checked : Detect whenever... and Force Component...)
- My VGA properies (Properties) : 2400*600 60 hz (Use Extended... not checked)
- Image Scaling : Enable GPU Scaling checked (Scale image to full panel size)
EDIT 2 :
Forget it, 4870X2 is on ebay. Back to Nvidia with a GTX480, a real card with real drivers. pissed :(