Mac OS X Tip--Repeating Key Stroke Issue in Classic

We are afflicted with this problem which may be described as a "stuck" key repeating its letter (in our case the "y" key) or function (in our case the "delete" key) in an application running in Classic mode under OS X. This problem has been reported on a number of fora so it's not just us having this problem. It happens to us in Outlook Express (an impetus for using the cocoa-native Apple Mail application) while responding to mail and in Adobe's GoLive 4.0.1 while updating Macs Only! We have been able to stop the repeating key stroke in its tracks by hitting the "Tab" key or "Command-Period" keys. Save often if using a Classic application.