Probably not a firewall issue but an IE problem (imagine that!).
http://forum.folding-community.org/fpost157044.html
Check out this thread on IE and F@H uploads.
You may have to reconfigure F@H so that it does NOT use IE settings.
IE7 also has known problems.
If you are setup to use a proxy change it. You can see if you use a proxy here:
http://www.proxyinfo.co.uk/check.php
Its a nice little tool.
I did lose one completed job, which was in position 5 in my queue. At some point it just disappeared. c'est la vie ...
I am showing 3 WU's at the moment and have one more stored and one in the works.
What a relief to know my efforts were not in vain.
Texas Booster, thanks again for you help with this.