second monitor - graphic area freezes

so, we got spiffy new workstations (Dell T3500, WinXP32, E5520 @2.27GHz Xeon, 3.5 GB RAM, NVIDIA Quadro FX 1800 (certified drivers)) and they work really nice. Except we can't get SW (2010 sp2.1) to play happy on the second monitor (matched pairs - Dell 1909W). SW will run, but the graphics area is locked whenever it is on the second monitor. we are looking for ANY suggestion on what to try.

thanks in advance

Jeremy

SolidworksAdministration