If the Mouse Tracks or Thick I-Beam feature is turned on in the Mouse control panel on a PowerPC-based PowerBook* or PowerBook 190 computers when an external display is attached, the external display image will not redraw correctly. The display will show white boxes or images of the cursor when the cursor is moved. The workaround is to turn off Mouse Tracks or Thick I-Beam.
In system prior to System 7.5.3 these options will not be available in the Mouse control panel. On the PowerBook Duo 2300c this occurs when connected to a MiniDock, not a Duo Dock. Apple is investigating this issue. It is not known when or if this will be changed.
* The following computers are in the PowerPC-based PowerBook computer family: PowerBook 5300, 5300c, 5300ce, 5300cs, 2300c, 1400c, 1400cs and 3400c. Additionally PowerBook 200 and 500 series computers which have PowerPC upgrade cards installed are included in the PowerPC-based PowerBook computer family.
This article was published in the Information Alley on 10 February 1997.
Article Change History:
14 Feb 1997 - Added new computer model.
10 Feb 1997 - Added keyword.
20 Jan 1997 - Added info about 1400 series computers.