3DS Max problem

i installed 3DS Max 6 a few days ago, and today i decided to install the Blizzard art tools, i realise they are for version 4 but i thought id give it a go, ever since then i havnt been able to re-open studio Max, is this becuase of the art tool? it says :

A liscence System error has occured. You must restart your system to initialize the liscnece management system. If the problem continues, contact your system administrator or authorized autodesk product dealer

Error [7.1.29]

i have rebooted 2 times but it still hasnt worked, and i unistalled Warcraft art tols and it still doesnt work. Should i reinstall or can it be fixed?

1rst Art tools doesn't Work with 3DS MAX 6.

2nd You have a unvalid licence or something

Recomation: deinstall both, art tools and 3DS Max 6, and reinstall 3DS MAX 6 :8