Uses 100% Cpu after resuming from suspend

Hi list,

occasionaly at resuming my laptop from suspend, fluxbox will not react
and shows 100% CPU at one of my four cores. I have to force-reboot the
computer with its power button. This happens once every 20 or so times
when resuming.  How can I go about debugging this further? Keeping a
fluxbox log per its startup file in -log "/home/me/.fluxbox/log" does
not produce any output when the above condition is triggered.

Thank you in advance for any help, this is a super annoying problem and
I am happy for any advice here!

cheers, P