UDEV devices go away when not in use, this is not good behavior

[Douglas Phillipson]

When running minicom on FC5 I noticed that when I unplugged my serial 
cable (USB->serial converter) my ttyUSB0 device went away.  After 
plugging it back in the device came back but minicom didn't see it until 
I restarted minicom.   I don't recall this happening under FC4 and I 
don't like that behavior.  Is there a way to stop this, nail up the 
device or something like that?

Regards

Doug P