Mail Merge Labels fatal error??

I’ve never had a problem mail merging labels before but now I’ve upgraded to 4.4 and the wizard has changed slightly, when I get to the create salutation step (which i don’t want so just clicking next) I get the following error and the whole thing crashes and cannot be recovered.

sfxBaseModel::impl_store
(File Name)
failed: 0x81a

Any advice would be much appreciated (incidentally the file name listed does not match the file name I am inserting data from, it’s a temp file)

Thanks