Touch Physics HD: iOS 4.2.1 and Partially black screen after launch

If you have updated to iOS 4.2.1 you may receive a partially black screen after launch. Please upgrade to the latest version of Touch Physics HD to fix the issue.

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Touch Physics HD: iOS 4.2.1 and Partially black screen after launch
Musical Lights: Facebook Prompt: Unable To Launch
How do I purchase your games?
I can't find the App Store icon on my handheld.
Which handheld devices do your games run on?
I'm left-handed, how easy is to use your game?
How do I change the settings for the game?
I'm stuck, how do I restart the level?
The game crashed or hung?
How do I play my own music?
I've completed all 50 levels in Touch Physics, now what?
Touch Physics used to work, but no longer does
The game resets when I'm playing
Help, I'm stuck on a level