Recently active topics in Last.fm

I'm getting tracks in my recently listened list that aren't mine. Has someone hijacked my account and scrobbling to it, or is this just a database error.

The Last.fm Facebook app is broken...
The discussion on the facebook board for the app: http://www.facebook.com/topic.php?uid=2381079642&topic=4921&ref=mf
A repost of what I said there:

Same issue, but it appears to be with malformed post data or some other problem upon submit to:
http://www.last.fm/login/appAuth?lang=en
This subsequently causes that page to kick out to:
http://www.last.fm/?invalid_session=1
Eventually just sending me to:
http://www.last.fm/home
When I'm logged in and all...seems to be a problem authenticating the app to my Last.fm account.

There are several artists that share the same name. Last.fm does not provide a solution for separating them. There should be a way for artists with the same name to have different Last.fm pages (also in favor of the artist).

Because when I want to listen to Sebastian's similar artists there is always some weird Swedish guy coming up that is not at all similar (except for the name ;) ).

I'm already using my real name everywhere else, I'd like last.fm to solve the technical problems that are keeping me from changing my username.

I can't login with the facebook app.What's up with that?

I love Last.fm and I think you provide a brilliant service.

Unfortunately, someone else's tracks have been appearing in my profile lately. This has been going on for at least three weeks. This is not a random selection of music, it appears to be reflecting an actual person's listening habits (i.e., one band's music or style of music will tend to appear together, it seems to be a coherent taste in music, etc.)

I don't think my account has been cracked, because I've changed my password and it's still happening. (Also, I think if someone cracked my password as a prank they'd be putting up embarrassing tracks, but the tracks are nothing notable.)

I know it's not someone else on my laptop, because nobody else uses it, and most of the songs don't exist on my laptop.

I contacted you after reading the following, but never heard back:
http://www.last.fm/forum/21713/_/3667...

Please help... I don't want my Last.fm profile to continue to be corrupted/diluted.

Thanks!

I've noticed one strange thing: music is cached even when I don't log into application but it's not closed.
In other words, when my colleague starts music player, Last.fm application is also starts and shows login box, so if she don't close this Last.fm login box and just ignores it and continue to music player, all songs she listens to are stored to my account cache and next time I log in with my credentials they're submitted to my profile.
THAT IS WRONG! :(

I'm managing our band "Knievel Genius" on Last.FM and have accumulated a set of similar artists which we worked hard to get associated with. A few days ago, this all changed and the list is now populated with some seemingly random artists we've never heard of and even show up as having "low" compatibilty with our band. Why has this suddenyl happened and what can we do to resolve it?