==========================================================================
The checksum's (found through sum -r) of the files that you have received
(other than this README) are as follows:

33577      1 patchSG0000398
10873     56 patchSG0000398.gsc_sw
23772      1 patchSG0000398.idb
==========================================================================



				  - 1 -



       1.  Patch_SG0000398_Release_Note

       This release note describes patch SG0000398 to IRIX 5.3.

       1.1  Supported_Hardware_Platforms

       This patch contains bug fixes for all INDY systems.  The
       software	cannot be installed on other configurations.  This
       patch should be applied only when the system has	the GIO
       Synchronous Communications (gsc)	and the	InPerson Video
       Compression Card	both installed in the system.  It may also
       be applicable when the system has both a	gsc card and some
       other (non-SGI supplied)	GIO card.  The patch is	not
       necessary (but is harmless) if only the gsc card	is
       installed and no	other GIO cards	are installed.


       1.2  Supported_Software_Platforms

       This patch contains bug fixes for gsc release 1.1 (version
       1021655420) on a	system running IRIX 5.3.  The software
       cannot be installed on other configurations.

       1.3  Bugs_Fixed_by_Patch_SG0000398

       This patch contains fixes for the following bugs	in IRIX
       5.3.  Bug numbers from Silicon Graphics bug tracking system
       are included for	reference.

	  o Incompatibility between InPerson Video Compression card
	    and	GIO Sync Comms (gsc) drivers causes gsc	to stop
	    working when InPerson Video	Compression card driver	is
	    installed, even if InPerson	is not operating. (Bug
	    264873)

       1.4  Subsystems_Included_in_Patch_SG0000398

       This patch release includes these subsystems:

	  o patchSG0000398.gsc_sw.gsc


       1.5  Installation_Instructions

       Because you want	to install only	the patches for	problems
       you have	encountered, patch software is not installed by
       default.	 After reading the descriptions	of the bugs fixed
       in this patch (see Section 1.3),	determine the patches that
       meet your specific needs.













				  - 2 -



       If, after reading Sections 1.1 and 1.2 of these release
       notes, you are unsure whether your hardware and software
       meet the	requirements for installing a particular patch,	run
       inst.  The inst program does not	allow you to install
       patches that are	incompatible with your hardware	or
       software.

       Patch software is installed like	any other Silicon Graphics
       software	product.  Follow the instructions in your Software
       Installation Administrator's Guide to bring up the miniroot
       form of the software installation tools.

       Follow these steps to select a patch for	installation:

	 1.  At	the Inst> prompt, type

	     install patchSGxxxxxxx

	     where xxxxxxx is the patch	number.

	 2.  Initiate the installation sequence. Type

	     Inst> go

	 3.  You may find that two patches have	been marked as
	     incompatible.  (The installation tools reject an
	     installation request if an	incompatibility	is
	     detected.)	 If this occurs, you must deselect one of
	     the patches.

	     Inst> keep	patchSGxxxxxxx

	     where xxxxxxx is the patch	number.

	 4.  After completing the installation process,	exit the
	     inst program by typing

	     Inst> quit



       1.6  Patch_Removal_Instructions

       To remove a patch, use the versions remove command as you
       would for any other software subsystem.	The removal process
       reinstates the original version of software unless you have
       specifically removed the	patch history from your	system.

       versions	remove patchSGxxxxxxx













				  - 3 -



       where xxxxxxx is	the patch number.

       To keep a patch but increase your disk space, use the
       versions	removehist command to remove the patch history.

       versions	removehist patchSGxxxxxxx

       where xxxxxxx is	the patch number.

       1.7  Known_Problems

















































