Korganizer lockups with webcalendar
There is a memory leak in MonthView that happens when displaying events that have a particular representation in the ical file (I am using webcalendar as an iCal-server so KDE reads and writes from webcalendar using the icalclient interface). Basically Korganizer starts allocating gobs of memory, grinding the system to a halt (until the kernel starts killing processes).
The bug is logged over here. It got missed at first posting but after a prod some KDE gurus jumped on it so there is now a fix checked into CVS - presumably just in time for the forthcoming KDE 3.5.5.
Pretty impressive - if you ignore the fact that logging the bug seemed to go largely unnoticed, from second prod (which included verification via a second system) to having a fix checked in was only 11 hours.