SW2009 freezing problems

Since installing sw2009 i had constant freezing problems
Tried untick 'uppearance-effects-hide underlined letters....'' butdidn't help
I was running dual monitor display and after switching to only onemonitor
this problen appears to stop. i was able to work whole day withoutfreezing.
Not sure if 2X monitors were causing problem (i will give couple ofdays to test)
However 2 monitros is great advantage and I wonder has anybody hadsuch problem solved and was able to use dual display?

Regards, ZiggySolidworksAdministration