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Title says it all folks. Older versions of Ubuntu don't have the behavior at all but I can't even find what it's called.

Thanks in advance!

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Dupe on AskUbuntu stack exchange site: How do I modify or disable the HUD's use of the Alt key? –  techie007 Aug 15 '12 at 20:42
Ubuntu 11 or Ubuntu 12? I think the HUD appears in Ubuntu 12.04 and not in earlier versions. –  user151227 Aug 16 '12 at 5:23
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up vote 3 down vote accepted

I don't know if this helps but, You can change the hotkey for the HUD by going to System Settings --> Keyboard --> Short-cuts.

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