Thanks for the note! I don't think that's it since the mouse is on COM1 and the PROMATE is on COM2, each of which are on a separate IRQ. Also, the PROMATE does work with with the DOS PROMATE program operating from within Windoze. Any more ideas? Harold On Fri, 11 Jun 1999 09:42:19 -0400 "Kenneth C. Finney" writes: >> Harold > >Harold, perhaps your wfw set-up is resource sharing the mouse IRQ or >something else on that com port. Its been a while, but I seem to >recall some >sort of setup option to mitigate com port resource collisions ... > ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.