I have an AT&T Pentium computer with a 19.2 modem which was set up for Com port 3 (the modem and sound card are integrated and on the PCI bus). I installed a ZOOM 56K flex modem in an ISA bus and windows put the modem on Com port 4 and IRQ 11. The new modem works great, but when I tried to install a HP 5P Scsi Scanner it would not work and it fouled up the new modem. I took the scanner off and reloaded the modem software and the modem works again. I would like to put the scanner back on but am not sure how to do this.