Anyone else finding the Proswitcher dialogue box to suddenly be acting differently?

iPhone 3GS, 3.1.2: I always run Navigon GPS (with backgrounder turned on) in landscape mode and use Proswitcher to check email & text etc. Last night, after double tapping the home button Proswitcher activated as usual but after tapping the Proswitcher icon, instead of being able to immediately scroll through the backgrounded programs the actual Proswitcher dialogue box stayed on the screen but rotated to a Portrait View. I had to hit the cancel icon before I was able to scroll through the backgrounded apps.

The only update I've done was since this issue was the Activator upgrade that was in Cydia a couple of days ago.

Any ideas anyone??

Thx. Jake