Re: More ROM 03 problems (locking mouse cursor)

[jmk3@crux3.cit.cornell.edu (Jay Krell)]

The ROM 3 mouse lock up bug has been vaguely known since 1989. It wasn't till I
got PT3 that I could duplicate it, dug around with GSBug and Nifty List, found
the problem, and fixed it. Try my ROM3MouseFixer init; it should be on
cco.caltech.edu. Apple tried to fix the bug in System 6, but failed. 6.0.1 will
fix it.
 
Apparently, there is a problem with how some 8-bit apps use the mouse. They
aren't turning it off and the Desk Manager gets confused between the 8-bit
(firmware) mode and 16-bit (toolbox) mode. The mode is saved and restored
around the CDA menu, but the typically non-interrupting "8-bit" mode is
restored over the Event Manager's interrupting "16-bit" mode.
 

--
  --Jay, jay.krell@cornell.edu