One of the comments I saw from someone, I installed P5 over P4.... I would think that is asking for problems, especially considering the high probability that some of the old P4 files would still be in there, causing discontent. The software industry has it pretty easy in regards to releasing software with bugs...there is no excuse for releasing software with GLARING bugs....there were problems noted immediately..it was not because of digging deep into the recesses of the program.... BUT...if these folks installed over P4...who knows.... My copy of P5 isn't here yet...my excitement has waned a bit, but after seeing the dynamic cloth demo...wow....I'm getting pumped.

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854