Someone was having difficulties getting a mouse to work with XY 4.104... I have an ARTEC mouse which uses a driver called AMOUSE.COM. It works fine with XY 4.011, 4.014 & 4.015. I just run amouse.com before loading XyWrite. Are you sure you have the mouse turned on in XyWrite? (Look at the mouse defaults.) The ARTEC mouse also works with Windows, OS/2 and Warp, although in those cases you don't need to use AMOUSE.COM. Myron