murphy@hao.ucar.edu (Graham Murphy) (01/24/90)
For some time, I have had a problem apparently with my Mac II's extended keyboard. The symptoms are that at fairly random intervals the modifier keys (caps-lock/shift/control/option/command) are believed by the system to be stuck down. Usually only some subset of the five keys gets stuck. I can temporarily get rid of the problem either by doing an ADBReset or unplugging/plugging either the keyboard or my trackball. I have a MacII with an extended keyboard and an Asher Engineering TrackBall. I have replaced the trackball with my apple mouse with no change in behaviour. I have used various combinations of the ADB ports with no change. Unfortunately I haven't yet had access to another keyboard to test this most critical part. Most annoyingly, the fault is extremely intermittent and I'm loathe to take the keyboard off for fixing or replacement until I have the source pinned down more. Any thoughts would be greatly appreciated. Graham Murphy High Altitude Observatory National Center for Atmospheric Research P.O. Box 3000, Boulder CO 80307-3000. Ph:(303)497-1565; Fax:(303)497-1137. INTERNET: murphy@hao.UCAR.EDU; Solar PO: gmurphy@solar.STANFORD.EDU