Vista - Directories and files created offline fail to sync

Hi all. Not sure if anyone else has had this problem. I have a network
drive mapped on a server at work which is set to be available offline. All
works perfectly except if I create a new directory when I am offline. If I
do then sync centre reports an error saying it cannot find the file or
directory specified. If I open up the network drive whilst connected or
offline I can see it all OK. To get round it I am copying it to a local
drive and deleting it from the network drive whilst connected, then I simply
copy it back to the network drive and re-sync and all is OK.

Cheers
David