MainMenu may show phantom window in Expose
The system maintenance and troubleshooting utility "MainMenu" may cause a problem with Expose in Snow Leopard where a phantom window will appear when Expose is invoked. When highlighted, this will look like a large blue square next to any other window you may have open that's showing in the Expose view.
A large blue window may appear next to others in Expose for MainMenu users
This does not appear to cause any other problematic behavior, but if you are seeing this blue window in Expose then try quitting MainMenu to see if it goes away. It's entirely possible another utility or application could cause this problem as well, so if you do not have MainMenu installed, try removing or disabling other system add-ons and menubar additions to see if that helps.
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Hi Chris,
thank you for your email.
Yes, we are aware of this bug, and we already fixed it.
We hope to have the next update (where this bug is removed with) ready soon.
Thank you very much for reporting and sending the link!
Best regards,
Norbert