I would recommend reporting it to TS3 developers on their forums to see if they can provide instructions for further troubleshooting.

Ok this is what I received. I play MMOs a long with other games on my computer. It is windows 7 and custom build. I loved that I had the overlay, due to I play a lot of pvp. Vent i had to guess who was talking or my my screen to see the vent. For a few days I my over lay was fine, then one day it just was gone in Guild Wars, seems to be in other games, but have not checked all. I was told to uninstall and re install that did not good. Then to un plug, log out and re plug in that worked. Then a short while later while zoning in another area, the over lay was gone. I unplug and re plugged then was back and went to new area and was gone again. Today still gone. Any help on what to do will be great. Thank you