"ALL MAC AND SPECIFICALLY MAC PRO SUPPORT"
Except for our default Mac Pros. We purchased two copies of the software before the Parallels home page "disclaimers" about MacPro (really just RSS feeds from press saying it didn't work).
Tried again now with this "now it works" build, just to get immediate grey curtain and restart.
Why even bother saying it's going to work, if it isn't?
And btw, to other readers who say, "Well, I used this or that command line, or this or that legacy fix, or took out all my RAM", if those are necessary then a release which says it supports Mac Pro should apply them or notify about them at installation. A product should not require a thorough reading of the forums in order to be used.