Just installed 2008 SP2.1 Premium.
I haven't used SW since the 2001 SP1 version and I have to say WOW, both for the features and for the bugs (but mostly the bugs).
Some of these bugs are so unreal as to make me wonder what the product manager was smoking to release something this screwed up as a finished product. Right off the bat, Command Manager is a joke, leaving buttons on top of other buttons as graphic ghost image crap. If I move the mouse arrow over the ghost buttons, I can "wipe" them off and reveal the "real" buttons underneath.
After getting rid of Command manager, I create a fairly simple cylindrical part (save it) and try rendering the part with various scene settings (I had used the Solidworks Office command button to open PhotoWorks). After a few renderings, I find I can minimize the part but can't close it or close SW. I had to open Task Manager to close SW. As it stands, with my very initial experience, this product is crap and needs to go back to the programmers. SW2001 may not have had all the new "features" but it was a hell of a lot more stable than this crap. I haven't even begun to explore the rest of the package and discover what other failings will appear. I am very dissapointed with this POS.