Two external monitors with macbook pro

attempting to use my MBP in clamshell mode with two external monitors.  Only thing I get is the same screen on both monitors.  I am also using VM Fusion running a windows xp interface. 
Tried just mac software...same problem.  Won't set up as two seperate monitors.
HELP

My understanding is that a "splitter" simply shares the same output signal between two monitors, causing both to display the same image at all times. That's exactly what you're seeing, right? So I think it's because you're using a splitter, instead of a device or devices that enable the monitors to receive different signals. Unless the manufacturer or vendor of your splitter can assure you otherwise and help you get your setup running the way you want it to, a better alternative would be to connect one monitor to your computer's video-out port, and the other to a USB port using an adapter like this:
http://eshop.macsales.com/item/NewerTech/VIDU2DVIA/
Note that the monitor connected via USB won't be as responsive as the one connected to the video-out port.
A more expensive option that would enable both monitors to be equally responsive is the Matrox DualHead2Go. If you have a MBP with a Mini-Displayport or Thunderbolt port, you would need the DP Edition of the DH2Go.

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