I've had my XP Fax Print Driver working for years and it works well with
Firefox and Office 2000. It used to work fine with Thunderbird, but not with
the new version 3.
(I'm asking this question in that forum too.)

When I'm on the page and I select FILE PRINT then select FAX as the
printer and click OK, the page seems "print" then the Microsoft Fax Wizard
window opens briefly then closes with no error messages. It's as if
Thunderbird can't "print" to the fax driver....

Any help appreciated !