I don't think Max likes to run its main window in the secondary monitor. I think I've heard people having other problems when doing so.
Why not make your larger monitor the primary one? That will probably help.
3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC