I recently upgraded to IE10 and notice that sometimes IE10 would lock up my desktop where I cannot click on any desktop icons. When going to the Task Manager, I would see several IE10 processes running. Sometime more IE10 processes running than what I actually have open. When I start going down the list of killing the IE10 process, on no particular IE10 process, when killed, my desktop is unlock and all other running IE10 gets killed along as well.
I have not been able to successfully duplicate the error. It just happens randomly during the day with different applications running.