Every time I get to this step in install (final step), check plugins I want, hit next (finalize,w/e), screen whites out and nothing. When I try to get in from web page, I get 500 error. This is like my third fresh install, all on different db's. I've spent a day and a half on this, when I should've been studying. Pls help. I thought this would be fairly simple, but apparently not.?