Apple made some significant changes to the code handling ADB devices in System Software 6.0.5 (see Macintosh Technical Note 206, "Space Aliens Ate My Mouse"). Because of these changes, certain ADB peripherals don't operate properly.
So far, we've seen the following:
- A+ Optical Mouse: very jerky, inconsistent movement. According to someone on Usenet, Mouse Systems has acknowledged it as a hardware bug in the mouse that did not show up in System Software releases before System Software 6.0.5.
- The Abaton trackball causes the system to freeze, either during startup or later. It may work for a while, or it may just hang the system.
- The Kensington Turbo Mouse ADB also causes the system to freeze. Kensington has released an INIT that fixes this problem. Contact Kensington for a copy of this INIT.
The following Tech Info Library article can help you find the Tech Note mentioned here:
Article 24493: "
Apple Tech Notes: What They Are, Where To Find Them"