DebugServices for PowerMac 2.0b12 and Macintosh System 7.5 Update 1.0

Power Mac DebugServices 2.0b12 is not compatible with Macintosh System 
7.5 Update 1.0.  You need to upgrade to Power Mac DebugServices 2.0b14.  
This version of Power Mac DebugServices may not work with hosts earlier 
than those found on ETO 16.  Please contact the manufacturer of your 
development environment if you encounter a problem using Power Mac 
DebugServices 2.0b14 with your development environment.