Itunes is not sharing (or anything else) properly

Question

iTunes is really beginning to bum me out to the highest level of bumtivity.
I have a MacMini running OS X 10.7.3 (fully updated). I run iTunes on it and it acts as a sort of media server for me. Until recent iTunes updates it's worked flawlessly.
I could watch movies on my iPad streamed from the MacMini.
I could watch movies on my iMac streamed from the MacMini.
I could watch movies on my iPhone streamed from the MacMini.
I could watch movies on my 50" flat screen through my AppleTV, streamed from the MacMini.
(I know it's technically not streaming, but caching the movies, but you know what I mean.)
It all worked great.
Now I've got nothing but problems.
I just bought and downloaded Mission Impossible Ghost Protocol.
AppleTV says I need to authorize the Mac to play the movie.
The MacMini is freaking authorized. So I authorize it again and it says it's already authorized. This goes on and on round and round and I eventually give up. This used to work perfectly.
I've got the newsest AppleTV also.
So I go sit at my desk and get ready to watch the movie through my iMac through the shared iTunes library.
First I have to quit iTunes on the MacMini and start it in order for the iMac to finally get a list of movies. (This is all wired EtherNet).
Then when I finally get the list of movies and select MI Ghost Protocol, the movie is plagued with stalls. My network is all gigabyte EtherNet. I ping a zillion packets to the MacMini and never drop a single one. This isn't a network problem.
No problems with the Roku of course. AppleTV streams NetFlix just fine, so does everything else on my network. It's just that homesharing has gone to **** in a handbasket. Count me in, in the growing number of people who really want to see iTunes completely redesigned from the ground up because it's a mess right now.
Has anyone else had these problems?  
Thanks.

Answer 1

If you mean that the tracks are out of order, but within the album, then the typical reason for that is that some tracks are marked as disc 1 of 1 while the others are blank... If they are listed in a completely different part of the library (and your library is ordered as Album by Artist, or something similar) then I would suspect issues with Sort Artist or Sort Album Artist. If neither applies then at least take a look at the Grouping tracks into albums article because the answer should be there.
FWIW those are my personal web pages I'm directing you to. Having them external to ASC enables me to update them as new releases of iTunes and iPod/iOS firmware introduce new wriggles into the task of getting everything organised really neatly.
tt2