Hi!
When I restored my contacts from a backup and logged in to my IM networks my contacts had duplicate entries of their IM-addresses.
Example:
Name: Foo Bar
MSN: foo@bar.com
MSN: foo@bar.com
Skype: foobar
Skype: foobar

When I'm online on the network the two fields display as one, and everything works as it should.
However if the network is inactivated all of the fields are shown.
This is really annoying since some contacts have not only two but 3 or 4 duplicates.

I can't delete them either, because then they would be thrown from the server too.

I think the solution would be a tool that searches duplicates and deletes all but one, without deleting from servers.

Thanks for reading, if you've got ideas please share them.