Mozilla 2004013108 / Win2k On first load, you should see two columns of lists, but instead it is one long list (shift+reload if you can't see it). Displays fine if you go somewhere else and return.
"minimized testcase, please". That is, where is the intermediate frame construction happening that is breaking things? Please don't file layout bugs as NEW without testcases.... file them as UNCONFIRMED.
I believe the testcase shows that this is the same problem described in bug 121142. *** This bug has been marked as a duplicate of 121142 ***