In ArcMap, the gINT for ArcGIS Toolbar is missing or doesn't work.
gINT V8i 08.30.03.185 or newer is required for ArcMap 10.1, and vice versa.
After installing gINT 8.30.03.185 or newer, if the gINT for ArcGIS Toolbar still does not appear, the ArcGIS configuration file may be missing. Look in C:\Program Files (x86)\Common Files\ArcGIS\Desktop10.0\Configuration\CATID or C:\Program Files\Common Files\ArcGIS\Desktop10.0\Configuration\CATID for this file: {cc7a5323-42d5-488f-a9f5-023d8e4e9cd5}_gintarcgistoolbar.ecfg. If is is missing download the file from here. Unzip and save it to that location. If the folders are missing, create the folders.