thanks for the info.... I will now have to find where I put it! It was not like the mac mouse and I do not or I did not think I had one for our Lisa but I guess I do now! our SMECC Lisa has a floppy and a hard drive. hard to say what is wrong with it... just a screen full of letters (any info on this is good to hear from you-) Ed# www.smecc.org In a message dated 10/1/2016 7:13:55 P.M. US Mountain Standard Time, cisin at xenosoft.com writes: On Sat, 1 Oct 2016, COURYHOUSE at aol.com wrote: As a mouse, $5 - $20 as a historic artifact, $10 - $1000, depending on prevenance (Engelbart's mouse is worth more than mine)