torgosPizza Thanks for the tips. I also had the same thought regarding the possibility of UPS logging the IP address of the old server, so yesterday I created a completely new UPS account from scratch and followed the web tools procedures. I then put the new information into the UPS Shipping module - but still no luck. So I guess it's probably not a IP logging issue.

Since Paypal Website Payments Pro is also not working with GoDaddy I starting looking at threads with regards GoDaddy and WPP. I came across this thread:

http://www.pdncommunity.com/pdn/board/message?board.id=api&message.id=13...

which seems to suggest that you must make OpenSSL calls through "the GoDaddy Proxy". I think since this OpenSSL issue affects Website Payments Pro on GoDaddy then it is quite likely to also be the cause of my UPS problems with GoDaddy since they are both using OpenSSL.

Now I really don't know what it means to run the call through the GoDaddy Proxy... but I guess if we could figure it out (I hope) we'd be killing two birds with one stone.