Yeah! Worst thing is they are now back synced to outlook, and there is no easy way to remove the duplicate entries! Just select, delete, whole series, ok each time.

I think I managed to find them all. so waiting to see if the N900 will sync and remove the duplicates seeing that they were removed on outlook. If not I will delete the MfE account and try again...

And I can check how android manages it on my other phone, as its got the same problem with duplicates now. Obviously more processing power means its not crying about it like the N900 is!