System Preferences freezes when trying to install preference Pane to all users

I just did a fresh reinstall of 10.6 after my hard drive crashed on me last week. I'm reinstalling my preference panes, but am running into a problem. Whenever I try to install a preference pane for all users, it asking for my credentials as usual. Then the window becomes unresponsive and starts to pinwheel. When you check the dock, System Preferences is listed as "Not Responding". I've let it sit there for five or so minutes and nothing changes. If the preference panes comes with an installer (like iStat Menus) I have no issues.

Anyone else ever run into this issue before?

 

computability??

Also, this is a fresh account. Just created as I had to do a fresh install of 10.6, as I said in my first post.