Any more news on this? This is the symptom I'm experiencing too.
An earlier post suggested it might be related to Impulse, but then it was tied to a tool from Google. Could Impulse have provided an updated version? If one returned to the prior version of mxtask.exe, would that be safe? Is it viable to deinstall Impulse? Will ObjectDock still work and will one be able to participate in the forums without Impulse?
I'm about to venture out and try some stuff, but I thought I'd reach out in case there was any more info...
Thanks for any help.