rdesktop doesn't log in if not in focus

I use Awesome WM with rdesktop, and I've set up rules to show rdesktop 
on a specific tag. If that tag is not visible when I open rdesktop from 
the command line, with username and password supplied, rdesktop will 
hang at a black screen and not log in properly until I switch to the tag 
it's on. I can see this black screen for half a second or so when I 
switch to it.

The remote computer runs Windows 7.

If I don't switch to rdesktop for a couple of minutes after opening it, 
it will get stuck in this part of the login process and forever remain 
at the black screen - I have to kill it and start it again to log in 
properly.

I can solve this by having rdesktop visible when I open it, but I don't 
see why it requires focus in order to log in when I already supplied a 
valid username and password?

To clarify why this is useful: I have a script running in a loop to keep 
rdesktop connected to a remote machine that's not always online. If I'm 
not at my computer when that machine comes back, rdesktop will be there 
on another tag, stuck at a black screen, when I come back.

Any help with this would be much appreciated.


Best regards,
Øyvind Hvidsten

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