DTR Logon Prompt Circle

Using NWDS 7.0.11 - I have an existing Web Dynpro project. Everything is checked in. The users have deteremined that another mod is needed. When I try to check out the code in the Web Dynpro Perspective I am prompted with the DTR logon Prompt. I entered my password (user id was already there). It shows infrastructure initialzation and other items so I'm assuming the logon is successful. But it is not... My code is still not checked out (though the Logn link in shows as connected). So I try again - attempt to modify Java code - prompt for DTR logon - enter password - messages go by - code still not checked out. I've repeated this circle many times. It's like it is not getting my logon.

I have verified that my password is accurate by logging directly into the SLD server and had no problems.

Any ideas on what I should try next?