Version: 1.8 (using KDE 3.4.0, Debian Package 4:3.4.0-0pre4 (3.1)) Compiler: gcc version 3.3.5 (Debian 1:3.3.5-12) OS: Linux (i686) release 2.6.11-1-k7 KMail is usually pretty responsive -- excepted when it decides to compact some mailboxes on it's own initiative. Then the KMail UI becomes unresponsive for the duration of the compaction. I have a 1Ghz system, it's not like I would have a very very old system. If more information is needed I will be glad to provide it.
Is this still a problem?