> This was a strange case! I have diagnostic software that indicated the
 > modem was working from COM4. It would even dial out to a test number
 > provided with the software. Qmodem just refused to recognize it on
 > COM4, 02E8, IRQ3 , but when we changed it to COM2, 02F8, IRQ3,
 > everything
 > cleared up and it worked beautifully. Computer programs and modems are
 > strange people. 
      I have known serial cards, even though their second port UART and
support chips are not physically installed, to still cause interference with 
another hardware device trying to use the same address.  What I've done in 
the past is assume that the non-existent port is alive, and either 
re-addressed it, or used a different address.  Reading what you said, sounds 
like you ran into a similar situation.
                       .....Bob
--- GE 1.11+ / IM 2.29c
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