Weird keyboard quirks since installing Lion

Ever since installing Lion, my keyboard has been acting weird.
I can't quite figure out what's going on. So far, I've just discovered a few weird things, like:
I can't use left shift to capitalize T, though it can capitalize every other letter, and I can capitalize it with right shift. What?
Normally I use cmd-shift-[ or cmd-shift-] to switch through tabs in Google Chrome. I can't use the right cmd to activate this, and I can only use it to select the previous tab, with [. Also tried adding cmd-shift-] as a shortcut in sys prefs, but it won't accept it.
The sys prefs F1-12 behavior preference is flipped from what it should be.
I'm sure there will be more, but that's just what I've discovered so far. There are no hardware issues with any keys. Restarting doesn't help. I'm totally baffled.

@willadler,
Check to see if this issue is occuring system-wide by creating a test account (System Preferences > Users & Groups). After creating a new account and logging in as that new user, does the issue still occur? If so, then it might be a system-wide Login Item, so try Safe Boot to be sure, however, if the keyboard works fine in that new user account, then try the following:
• Delete (or Move) the following files from your home folder:
~/Library/Preferences/com.apple.systempreferences.plist
~/Library/Preferences/com.apple.systempreferences.plist.lockfile
~/Library/Preferences/com.apple.universalaccess.plist
~/Library/Preferences/com.apple.universalaccess.plist.lockfile
• Logout and log back in for the changes to take effect, and test the keyboard (NOTE: deleting the above files will reset much of the customizations you have made in System Preferences, so I'd recommend Moving them to the Desktop in case you need to restore them)

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Message was edited by: sdevan

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Weird keyboard quirks since installing Lion

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