These are known problems that can occur when applying the Office 97 Service Release 1 patch:

Problems that are caused by SR-1

The following are known problems that arise after installing Office 97 Service Release 1. Some only arise if you use the patch, others occur on the Enterprise Update too.

 

In addition, the original release of the SR-1 patch was faulty and could cause a serious problem when saving files.  That patch was withdrawn on 16 August 1997 and a new patch put in place a few days later. Microsoft have a 'Patch Version Checker' program that purports to identify any version of Office patched with the faulty release - but it is of limited value.  If in doubt, better to get the Enterprise Update CD and totally replace your current installation.