xdrive logon not working

I have an aol account; I have installed xdrive desktop successfully (loopback adapter installed, no errors). I can access my space using the lite version just fine.

But the big appeal of the service is the mapping of the space as a drive letter so I need the desktop version.

when I try to login using the desktop, the program hangs up iterating between "checking credentials" and "mapping drive".

Eventually, the process times out.

Doesn't seem to be a firewall issue--when I turn the firewall off, the process still stalls--

thanks!