Found it, it's a known bug -- and another issue
IE6 upgrades installed by IEAK over an IE5.5 or earlier install
not installed by IEAK will have this problem. It's a quick fix (run 'regsvr32 urlmon.dll') and they've got a hotfix (sortf of) that will be incorporated into IE(6)AK shortly. Basically they forgot to re-register the URL handler.
Now, the other problem: If I have two IE windows open and use a link from my toolbar in one of them, then switch to the other window and click the same link, I will be switched back to the first window. Even if that site is no longer up in the first window. Ex:
- First window, click toolbar link for z.iwethey.org.
- Second window, click link for slashdot.
- Switch to first window, go to mail.yahoo.com.
- Switch to second window, click link for z.iwethey.org.
- I get switched to the first window, which loads z.iwethey.org.