User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4a) Gecko/20030401 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4a) Gecko/20030401 The moveable border separating the message list and message panel jumps up and down (i.e. the message list or message panel is growing shorter and longer) rapidly at a rate of about 2-3 times per second. I cannot "grab" the border to attempt to resize the list (because it is moving too fast). This happens whether or not I've selected a message to view from the list -- the message I select is displayed, but with the bouncing. Reproducible: Always Steps to Reproduce: 1. Open Mail Actual Results: The message list is displayed, along with the message I select, but the border is jumping. Expected Results: Sit still.

This is already reported (multiple times, in fact)....

Dupe of bug 201379?

*** This bug has been marked as a duplicate of 201379 ***