Video card cannot handle 3 monitors

Hello, I have been trying to set up 2 external monitors on either side of my mac. I have all of the equipment for all 3 displays (The 2 external monitors are both 24'' widescreen monitors) but I believe that it's my video card that is causing a very low frame rate on the monitor to my left. That or the fact that it is connected using a usb-dvi,dvi-vga adapter. The monitor to my right was connected with a mini dvi to vga adapter and works beautifully but the program that I use three monitors with gets a low frame rate all together whenever I spread it to all three. I am also not sure if I can get either another or a better video card installed and if that would help. Any ideas?

Hi, which exact iMac is it?
Not likely you can get a better Video card though.
So we know more about it...
At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware> and report this upto but not including the Serial#...
Hardware Overview:
Model Name: iMac
Model Identifier: iMac7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: IM71.007A.B03
SMC Version (system): 1.21f4

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    EndSubSection
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    Last edited by securitybreach (2012-06-01 16:50:47)

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