I have just removed QuickCursor from sale in the Mac App Store because
I cannot in good faith promise we can fix these ongoing issues in a
reasonable amount of time. Please see this new thread for more
details:
http://groups.google.com/group/quickcursor/browse_thread/thread/3770693251baddec?hl=en
There are workarounds for the issues with OS X sandboxing, but they're
unacceptable in a paid app.
I'm sorry. Please contact the Mac App Store support team about a
refund (developers cannot issue refunds, only Apple can).