DMcG:

The SR-1 would normally refer to a "Service Release," which would be a set of "fixes" you would typically download from Microsoft.

Installation of an SR package normally requires a reboot, with some additional (automatic) configuration after the boot. If the reboot and finish was not completed at the time of installation, it's possible that the "install" routine has gotten fouled.

You might want to check with Office Downloads and see if a fresh download and install will clean it up.

Note: the Office Service Releases (or Service Pack for XP?) can be fairly large, and you often need your "serial number" to complete the install. Check HELP-ABOUT in any Office program to get your "serial number."

John