dahappydad

Hello, hoping someone out there can help me, i work in a school and got 25 new computers and installed windows office xp on them, things seemed to install ok but when kids use the computers in word it either locks or mainly completely reboots the system, this only happpens when using Word !! I have searched and done fixes with the program and with deleting reg keys and re-creating normal.dot but still have the same issue, please can anyone help me with this !!????? Thanks.