could you be more specific as to which product components are buggy, I think that the first post was regarding o*cad capture and the second was o*cad layout. P*D comes with all the other C*dence products like conc*pt, all*gro, Speectr*, specttraQu*est.
Anytime there is a major revision to any software it is always a good idea to keep the previous rev around as back up. it is a know quanity with workarounds well documented.
if an error occurs go back to a previous save and try to replicate the problem . if the error is repetable it is far easier for the developer to fix the problem.
pd