My last two builds (both "clean" builds) have a malfunctioning threadpane. When I start mailnews, the threadpane has no content, just the header and scrollbar. The scrollbar appears to be the correct size for the expected number of messages (and it changes size appropriately as I select different folders). No amount of resizing, selecting different folders, different columns for display, can make the threadpane contents appear. Applies to both mail and news folders. If I switch back to a previous build (e.g. my next newest version is 20011102), the threadpane functions normally. Linux 2001110815

displaying the "Thread" column makes them reappear. (It's possible you have to resize the pane a little afterwards to see full text) *** This bug has been marked as a duplicate of 108579 ***

Yup, that's the problem.