powerpoint problem

[hfalls]

i've attached the displaylink info collected by the debug tool. I use my MacBook Pro display for the presenter notes and its the main display (displaying menus). I have two other monitors attached, one via displayport and one via usb-diplaylink. The displays work reliably except for the problem with powerpoint. What is odd is that until fairly recently, it worked fine with powerpoint using a beta driver for Lion.

Thanks,
Gordon