Description: GS/OS: Needs Latest ROM Revision To Work With ProFile Header: GS/OS: Needs Latest ROM Revision To Work With ProFile This article last reviewed: 11 November 1988 When using GS/OS under Apple IIGS System Disk 4.0 with a 5MB ProFile, be sure you are using the latest ProFile ROM revision. A 5MB ProFile needs the 341-0299 ROM revision to work correctly with GS/OS. If you have problems formatting, or receive a message stating that your drive appears to be damaged, you need the new ROM. (NOTE: This ROM is a service part, and is located on the Apple II price pages.) Copyright 1988 Apple Computer, Inc. Keywords: