I have an XP computer with WinFax Pro installed that used to work fine. There's a US Robotic's modem connected to Com 1 as well.
When I try to send a fax, nothing happens. Nothing goes into the Outbox, and Winfax doesn't try to communicate with the modem.
I went into Hyper Terminal and tried to access the modem and was successful, so I doubt that I have a modem problem.
I'm finding little on troubleshooting WinFax Pro at this point but would like to restore it's operation if possible.