Taskbar still showing when using maximizer functionality

Hi all,
I'm trying out keyclone for my main computer and I think it is really nice.
One problem I still cannot get around is when I have set up the maximizer for my two WoW/instances, one on each screen,
the taskbar is still visible and overlaps the wow-windows. Is there something I miss in teh settings or is this a known issue?

I have a Quad core system with 4Gb memory.
I run the desktop as one horizontal desktop with my 8800GTS under WinXP.
I'd appreciate any help :)

For Windows XP: Right click on your task bar, go to properties, then uncheck "Keep the Taskbar ontop of other windows"

Thanks, that was really nice. Actually I should've found it already since I set auto hide taskbar earlier as a workaround. doh!! :)