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Whenever I type "a" in Terminal, I get a beep, and no output. If in uppercase, "A" types fine. This computer (new mac mini) is only a few days old, but I've done a few things that may have caused this behavior:

1) Installed DoubleCommand. Disabling all options in DoubleCommand doesn't help

2) Change some of the keyboard shortcuts in Terminal (specifically: Home, PgUp, PgDn, End, shift+PgUp, shift+PgDn). Switching to a different theme (where my keyboard shortcut changes don't exist) does not help.

What I haven't tried:

1) restart (Update2: tried, didn't help)

2) uninstalling DoubleCommand (Update 2: tried, didn't help)

Update:
lowercase "a" works in Vim, but just not at command prompt

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Any changes to your .inputrc, .bash_profile? Do you run screen or tmux? Also, seriously? You take the time to post and explain your issue and expect others to answer, but don't restart your machine? This is number 1 troubleshooting advice for a reason. – Daniel Beck Apr 6 '11 at 6:47
    
@Daniel: I thought I cleared out my .bash_profile and .inputrc, but did so again to be sure, and presto, this fixed my issue! Much thanks.. Can I accept your comment as the answer? – Dolan Antenucci Apr 6 '11 at 6:52
    
You can't unless he reposts it as an answer. – Ben Alpert Apr 6 '11 at 6:53
    
Now you can :-) I don't like posting troubleshooting suggestions as questions. Thanks in advance! – Daniel Beck Apr 6 '11 at 6:54
up vote 4 down vote accepted

Check to see if there's anything odd in your .inputrc or .bash_profile. Best to move them to a different folder temporarily and see if the problem goes away.

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