Freeware
Current version: 1.0
Requires System 6.0.1
Twilight II, the cool screen
saver from DigiSoft Innovations, has a configurable option
that lets you specify whether or not system beeps should
unblank the screen.
Unfortunately, when Apple released System 6.0.1, they
updated the SysBeep2 Toolbox call,
which is used to play system beep sounds, so that it always
sends an unblank command. This removes the ability to make
the choice for yourself.
The Patch SysBeep2 utility patches the SysBeep2 call to stop
making this decision for you, letting you configure it once
again using Twilight II.