Tortoise SVN unable to authenticate password

[Stephen Flowers]

Ever since I changed my password Tortoise SVN will not authenticate. 
Even though I can browse the repository through a web browser with the 
new password fine, TSVN will not authenticate it. We use the "free" 
version of Visual SVN server and TSVN 1.7.6.  SVN Server is accessed 
through https.

I tried a re-install of TSVN.  I tried clearing the stored password 
cache with no luck. Other users dont seem to have a problem logging in 
on my machine, but I cannot log in on anyone elses.

Any idea?