Graphics driver weirdness.. certain apps causing issues with landscape graphics

[GoodThings2Life]

OK... right now... Download CeRegEditor for the PC... http://ceregeditor.mdsoft.pl/

Connect the phone to your computer and use this tool to take a backup of your registry state in a "working" condition (200 in landscape/portrait). Then, open CorePlayer so that it "breaks" the performance... then reconnect CeRegEditor and take another backup. Zip the files and post them here, and I'll do a compare on them to see if we can't at least figure out what it's doing.

I have used this trick to document that it's Opera screwing up the Classic Word Completion hack too (it's the program that keeps resetting the value of CurrentET9Style). It's possible that it's making some fundamental changes to your config while it's running that aren't getting reset when you exit.

Question: do you have Task Manager set so that "X" forces an exit of programs, or just the standard minimize function? If it's set to minimize, change it to force exit and see if that forces CorePlayer to shutdown and revert the settings on its own.