SCO interprets RTS in good old half-duplex manner - RTS high means "I want to transmit", not "I am ready to receive". Forget using it with full-duplex modems. Or install FAS. -- Dmitry V. Volodin <dvv at hq.demos.su> | fax: +7 095 233 5016 | Call me Dima ('Dee-...) phone: +7 095 231 2129 |