When are you guys going to solve this bug? http://kb.parallels.com/114488 It has been more than 6 months and this is getting really annoying.
I had a slow shutdown problem with Parallels 7 on my rMBP. I spent $$ and lots of hours with Parallels Tech support, but they could not determine the cause. Parallels 8 does not suffer from this problem.
Wow. Parallels 9 now - two versions later - and now January 2015 - two YEARS after the problem is identified - and STILL a problem. My Mac Pro won't shut down AT ALL.