Thanks, again, glennzo and leigh123@linux.
Adding fusion-icon to the "sessions" solved it. (btw, where are all these options stored? I mean, these are no init.d type scripts).
One thing thought, could be just me, but fusion-icon works slower then when using the "Enable desktop-effects".
If you click on a program from the "File Browser" module from awn, it takes much longer time for each file to open.
I still run the biggest x86 shared memory machine ever built (now Nehalem based)!!!