Does the new Thunderbird have a memory leak?

[Evan Leibovitch]

I'm running Kubuntu 8.04 and keep it fully updated. Recently there was a
Thunderbird update (2.0.0.14)  and since then my two systems have become
frustrating.

Frequently now mouse clicks just get ignored. They don't get queued or
work slowly, they get discarded and have to be redone. I often need to
re-click two or three times. The actual mouse movement has not slowed,
but any click activity (text selection, cursor position, scrolling, etc)
is very severely affected. Delays can be up to five seconds or more to
get response. When I run 'top', Thunderbird is clearly the hungriest
app, using 110M of resident memory.

Any suggestions?

Thanks!

- Evan