2006 version gives me no joy!

Last year I was really happy with Internet security. All versions have run smoothly. But since I've installed the 2006 version, there is nothing but trouble. Constantly crashes something from each of different reasons. I get error messages that I had supposedly loaded an old virus definitions and that I should update it immediately. Only today again. I had loaded the last stand from 7.1.2006 and to update due to the error message gave me Internet Security but in fact the state from 25.12.2005! loaded. Just unbelievable! And it was not easy to clean up this nonsense and actually the date by 8.1. load on the PC. After 6 trials (and other diverse error messages) it finally worked. Is my way, now already happened several times that I suddenly got an old virus definition loaded instead of the current version. In between there to Abwechlsung time and again reports that I had no authority at all downloading what, I would not have enough space and weiterern mischief. So something must have gone wrong with the program. I'm disappointed!