Only if the monitor has a switchable option like the 2550(a.k.a. U5000 )does. Any 25" in the 7100 and 7400 series can be used since they are all standard rez but if you have a medium rez 7500, this can't be used as a standard. Have i confused you? I've had more booze tonight than i should have but i know my info is correct.
Also, if your game is standard rez, a medium rez will produce nothing but weird double or triple images if you try to use a medium rez monitor.