Harold: US Robotics has modems made specifically to work with 3.1. You can check them out at http://www.usr.com/home/online/ . However, I think you will have to use an external on the PS/1. Breck PS (pun intended) I don't think the PS/1 was not sold with a modem faster than 2400 baud. It's also very refreshing to read email with capitalization, punctuation and sentence structure once in a while, thanks. >I have a friend who has an old IBM PS/1 with the original modem in >it. He said he thinks it's a 9600 modem. The operating system is >Windows 3.1. >Also, are there any proprietary issues for us to worry about as we >jump into this project together? Harold E. Schumacher, Jr. PCBUILD maintains many useful files for download on our web site - visit our download page at: http://nospin.com/pc/files.html