Word (or another recently installed add-in to Word) sometimes causes Pathagoras (and other add-ins) to stop working for no apparent reason.
There are three classic indicators that Pathagoras has stopped running.
•You don't see the Pathagoras tab in Word's toolbar. I.e., Pathagoras has 'disappeared.'
•You see the Pathagaoras tab, but only a partial set (typically two, instead of four) of Pathagoras buttons.
•You receive an error message that Pathagoras has failed to load.
Whether Pathagoras has 'disappeared' or is simply 'partially' running, restoring Pathagoras is usually a simple matter of reminding Word that Pathagoras really does exist.
Here are the reconnect steps.(In 4 'words', discussed below, these are the steps: "File, Options, Add-ins, Word Add-ins")
1.Click 'File' at the far left-hand side of Word's toolbar.
2.Click 'Options' button in the lower left corner of the new overlay. (If the Options button doesn't appear, click the 'More. . .' button.) You should see this screen:.

Figure 1. The 'Options' Screen.
The Add-ins button (which you will click next) is the 2nd item from the bottom down at the left.
3. Click the 'Add-Ins' item in the left panel. The View and manage Microsoft Office Add-ins screen will appear and you should see a screen similar to Figure 2 below.

Figure 2. The 'Add-ins' Screen.
Note the 'Manage:' dropdown, bottom center.
4. At the bottom, look for the "Manage" drop down. Click it 'down' to display listed options. Select "Word Add-ins". Press the 'Go' button
5. You should now see a screen similar to Figure 3 below.

Figure 3. The 'Templates and Add-ins' Screen
Check out the large box in center screen.
6. Most likely, the checkbox adjacent to Pathagoras.dotm is not checked. Check it.
7. Press 'OK'.
6. If you do not see Pathagoras in the above screen, try reinstalling Pathagoras from your original "Pathagoras Setup.exe" file (the installation package) that you downloaded (no need to uninstall).
7. If still not successful, call or write to us. We'll establish a GoToMeeting connection and get you up and running in short order.