Kbase Article of the Week: Power Mac G4 Mac OS ROM 1.8.1: Document and Software →

Apple Support:

During testing, Apple has discovered a potential issue which may cause data corruption or system crashes in certain situations on Power Mac G4 (PCI Graphics) systems. The Power Mac G4 ROM 1.8.1 Update includes fixes for the following:

  • Data or file corruption with Virtual Memory on
  • Photoshop crash when Extensis Photo Tools is installed

Apple recommends that all customers with Power Mac G4 (PCI Graphics) systems install this new Mac OS ROM to prevent the data corruption problem and ensure the greatest stability in your system. Since this issue has already been addressed in Mac OS 9, as well as Power Mac G4 (AGP Graphics) systems, this update will not install on this version of the Mac OS, or on these Power Mac systems.

Pretty wild to think Apple pushed a ROM update to a machine to fix an issue with Photoshop. 1999 was a different time.