Characters get inserted into filename

Characters get inserted into filename

Great product, and potentially very useful. An issue though:

I have had characters added to the file name - in the place of spaces between words, it now has "%25252520".

This has happened to one of My Docs. Yesterday it happened to a Shared Doc, then it mysteriously came right.

Any idea what's happening? I can't find a "Rename" function - is there one (perhaps it would this mess up the collaboration).

I'm using IE6.0, though a corporate firewall.

Grateful for any advice, thanks.