Well that's not good, hmmm, try going to the same place but this time select 'Clear Usage Date'. If that doesn't work you can always try a reinstall of Impulse.
On the reinstall disable your A/V and see if that the fixes the problem, stranger things have been known to happen.
I haven't seen that problem with Impulse in a while. You might try in IRC and the Stardock channel. Hankers is there, he might have a suggestion.