HyperCard: SCSI Probe Interfere‘s with Command-Space Bar
The Command-Spacebar keystroke normally hides or displays the menu bar in HyperCard. If, instead, the cursor changes to a watch and the menu bar does not hide/display, the cause may be a Control Panel document in the System Folder called SCSI Probe.
SCSI Probe uses Command-Spacebar to mount hard drive volumes. To fix the problem, change the keyboard shortcut for SCSI Probe to something else. (You won't need to restart the computer.)
This article is adapted from the Claris Tech Info database.