temporary solution
I had Parallels support do a remote log in to my Mac and they were able to duplicate the problem. Apparently it is related to the size and magnification settings of the dock. Readjusting these settings will generally fix the problem, though it does take a bit of finagling to find the exact setting. I've attached a screenshot of the dock settings I'm using that allow start menu integration to function. This is an imperfect solution to the problem, but it does work. The tech that identified the issue mentioned that he has submitted the bug to the development team, so hopefully a patch will be released that resolves the issue.
Full text of the transcript with tech support:
Hello, It's Andrew from Parallels. Are you ready to start?
yes.
OK, good.
I have found out when this start menu integration does not work .
It does not work with settings of the Dock that you have now.
If we change one of it to a different value, it will work. E.g you noticed that it does work when Auto-hide is enabled. Not only... also when magnification is off. Or even if we change the size of the Dock, or the magnification size.
Please have a look.Now it does not work.
As you saw it worked with different setting, but when I reverted them back it again does not work. I reproduced it on my Mac also. So I will report it to our development team. But I suspect that this is somehow connected with Apple. May be some bug in Dock preferences.
As I workaround I suggest you either turn off magnification or change the size settings to the way it works
that is an imperfect solution but will work. sounds like a patch may be needed. i'll use the work around for now and keep an eye out for an update.
Sure. As I said it will be reported for investigation.
ok. that sounds good. i will post this to the forums so others who are having a similar issue will be aware.
Yes, thank you. One more note. when you change the size setting, close the dock preferences before the trying Start menu. For some reasons open preferences affects it
is there a specific size that seems to work better than others?
I would say that there is a specific size that does not work. all other sizes work. let me try it once again.
It seems that in your case the magnification size matters. I set it to a bit bigger and it did not work.. increased more and it worked
right. i noticed that as well.
At my Mac as I tested the range of sizes a bit shorter. but still there is a size when this does not work. Ok, I think it's done and we can finish.
ok thank you for identifying the problem
Thank you for your time. I am already submitting this issue to our developers.