Didn't try the kernel 2.6.20rc3 (the part rc3 keeps me far away too) I'm happy at the moment with 2.6.18, and the problem had dissapeared with the 2.6.18 kernel
Code:
seyya@rommiebox:~$ uname -a
Linux rommiebox 2.6.18-ck1nana #1 Sat Jan 27 19:55:26 ART 2007 i686 GNU/Linux