I'm not getting the popups but I am getting the same error message. I am logged in as an administrator. Mac OSX Snow Leopard, Macbook Pro Intel.
Finally, you have to do the following ( under Mac OS Snow Leopard ):
-Uninstall ALL air applications.
-Uninstall AIR, using the Uninstaller App ( located in /Applications/Utilities )
-Delete the following directory:
sudo rm -rf /Users/YOUR_USERNAME/Library/Application\ Support/Adobe/AIR/
And BINGO! after doing that, reinstall adobe air, and tweetdeck!!!
There you go, at least that worked for me, hopefully it works for you!
I was having the same problem!
Here's what I did:
Uninstalled Adobe Air using the uninstaller, and then I deleted this folder: sudo rm -rf /Users/YOUR_USERNAME/Library/Application\ Support/Adobe/AIR/
You don't have to delete your Air applications.
Exactly what i said