Dropbox login now the default - cannot connect

I tried to setup Dropbox as the default source and it won't connect. It never prompts for the password. I have had this issue before but this time I closed out RDM and had it set to always prompt for the password before setting it back to the local data source and now it tries to open the program and connect to Dropbox in an endless loop. I have completely uninstalled and even went into the registry to remove any connections I could find. I re-install and it goes right back to connecting to Dropbox and is stuck. Can I bypass the data source by using the command line or changing something somewhere else?