> Tillmann Steinbrecher wrote:
>
>> Hi,
>>
>> switching from one mail folder to another is very slow, especially if
>> the folders are big (>10000 messages), it sometimes takes a few seconds
>> to switch from one folder to another. NS4 was much faster there.
>>
>> Also, when browsing email messages, there's always a short, but
>> noticable (and annoying) delay between clicking on the message and
>> having it actually displayed. The window's title bar will display the
>> subject of the selected message almost immediately after clicking on it,
>> but the actual message will be displayed with a short delay.
>>
>> Any hope that there will be a speedup in this area?
>
Might be having a similar problem as bug 68778.
Try deleting a history.mab file in your User folder.
Also, turn off the address collection option in Preferences|Mail/News|Address Book.
http://bugzilla.mozilla.org/show_bug.cgi?id=68778
Masakazu Hirata
