Thank you! I've had some icons showing up incorrectly (with the generic "blank" icon) for months. Fixing the icon in the Start Menu\Programs seemed to do the trick!

Tip: There may be a correct...

I just ran into this issue, and have a potential solution. First, a hat tip to qweerie for mentioning about the vanishing app. That proved to be key to the solution to my issue.

To solve:
1. ...