You may be seeing this one:
http://bugzilla.mozilla.org/show_bug.cgi?id=97749
K.
Ray Ilano wrote:
> It appears to be a regression with the chrome. If I delete the chrome
> folder in my *profile* Mozilla rebuilds the chrome correctly. However it
> performs the same corruption whenever it wants to, usually after a
> couple restarts. This doesn't happen for me in 0.9.3. I'm looking at the
> long list of known bugs as well as checking the nightlies :-)
>
> John Hardin wrote:
>
>> Bob Davis wrote:
>>
>>>
>>>
>>> Bob Davis wrote:
>>>
>>>> My mail tool bar since 0.9.4 has a blank spot on the far left.
>>>
>>>
>>
>>
>> The same thing happens to me if you start it with "mozilla -mail". If
>> you start up in the browser and go Tasks -> Mail & News then it looks
>> correct.
>>
>> Have you submitted a bug report?
