The Login ID (PushOK SVN Proxy) input field under Tools/Options/Source
Control/Plug-in Settings is grayed out.
How do we enable the input field in order to supply a Login ID different
than our domain user name?
See attached picture for more info.
Link to MS online help stating that it's an PushOK configuration issue:
http://msdn.microsoft.com/en-us/library/8bh5ksax(VS.71).aspx