I have a G450 and haven't had that problem, but my primary monitor is on a GeForce3, with the second and third screens on the Matrox. I had terrible driver conflicts between the Nvidia drivers and the Matrox drivers to the point of the monitors on the Matrox card being unusable. The Matrox drivers were so bad that I just uninstalled them and am using the default drivers that came with XP. Everything is working great now. I just update the Nvidia drivers whenever a new one comes out, but never the Matrox. Maybe just NOT using the Matrox drivers might help your problem.
Didn't know I could use the card without the drivers. Question, you run charts accross several monitors, and can max a chart to one screen? If so, I'll ditch the drivers altogether. Jay
Figured it out. Its a software problem. All MS programs zoom properly. I use Qcharts. Apparantly, they don't care about multi monitor settings. I've informed them, but they have a shitty attitude about it. If others also bitch about this, maybe something will happen. Jay