Don't let happen to you what happened to me :-)
I woke up one morning to find my tank had imploded. I had no idea what could have possibly caused it. Eventual concensus was a clogged vent hose.
Read about it here -
http://ducatisportingclub.com/contro...d.php?tid=3795 Check out the pictures here -
http://www.kapital-sales.co.uk/desmo/images/Tank/ (They're quite large pics and you really only need to view the first one)
I hope you get it sorted soon though. Good luck.
Phill