Version:           3.5.5 (using KDE 3.5.5, Debian Package 4:3.5.5a.dfsg.1-6 (4.0))
Compiler:          Target: x86_64-linux-gnu
OS:                Linux (x86_64) release 2.6.19.2

I've been trying to import a schedule from TimeEdit, and the entries contain newlines (using quoted-printable encoding). These are handled in at least three quite different ways inside of KOrganizer:
1. Main calendar view, sometimes breaks lines or shows boxes, and worst, removes unrelated characters. For instance, the sequence "Frl=0D=0AD3", which should be Frl and D3 on different lines, shows up as Frl, box, linebreak, 3. That's rather bad considering that's the one letter in the entry that tells me which building to walk to. How many boxes and which characters get cut seems inconsistent:
"2U1700=0D=0AFrl=0D=0AD3=0D=0AE1E" became "2U1700[]\nFrl[][]\n3[][]EE", where [] is boxes and \n are linebreaks. This even ate a character in between others, without doing the linebreak. 
2. Entry view (left side, just above calendar list for me). This seems to be breaking lines correctly.
3. Entry editing (having doubleclicked the entry). Here the newlines show up only as two blanks, yet the characters are clearly different. They can be copied and pasted but not distinguished.