When I click on any URL shortcut in IE8, nothing happens. And when I check on their Properties > Details, no URL displays, and I can't interact with any of the fields (URL, Rating, Description, Notes).
This also happens with URLs that I drag to the desktop.
It happened after I tried to install a standalone IE7 along with my IE8.

It didn't work, but I was able to uninstall 7 and reinstall 8, but this is the lone issue that remains.
I have tried the Club's awesome association fixers and the webdoctab.reg file, but neither worked.
If any of the resident geniuses could help, I would be greatly appreciative.