I'm running flexfax v2.1.0 on a Sun Sparc, and it works fine. The only problem I'm having is that after I halt the faxd server using faxquit, my modem's tty, /dev/dialer0, has had it's file permissions changed to 600, so as tip won't work unless I su to root and chmod the file back to 664. Not a big deal, but kind of weird...