Re: When I click on certain buttons it grays out and hangs. Help!
Try installing the "iotop" package. Run "top" and "iotop" in two terminals, and then trigger the action that will cause the window to grey out. See what's at the top of the lists running in the terminals.
Usually when a window greys out temporarily, it means that either the CPU or I/O are working so hard that the signals from the window take a long time to reach X.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.
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