Badhai cha sathi..you must be the most responsible person i have known. it could very well be that the system was down at the time the clerk in TX state tried to pull your record. I have had similar issue when a state trooper in NE pulled me over and could not find my license ID which was from another state. i would double check on it.  Or it could very well be that you got lucked out and your previous DUI convictions are lost and you have a clean slate. I would try going back to get the Texas ID and ask the clerk if he can see any records just to make sure. If it doesn't show up then hey just think that the gods are smiling down on you and never drink and drive again.