A problem with alert dialogues and moving to other workspace

Sep 15, 2008
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Hello. I'm observing a problem with Opera where it displays an alert dialogue at the top of the window, I try to click on it, and focus goes to my other workspace. When it does so, there is a shadow near the top of the screen, I guess for where the alert box would have been. I've observed the same problem in other applications. I've tried googling for this but I haven't been able to find a solution, hence my asking here. If anyone can help me solve this, thank you in advance.

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