Zedrobinson

I am running office xp on a network of 40 computers all with windows 98 se. Half of the computers on the network have a problem with office xp - it keeps crashing when using clipart. The only differnece with the computers is that there are pentium 3 and pentium 4 machines but have the same amount of memory. It is very frustrating as clip art is very important for the school envirnoment. I have rebuilt the system and even ran the repair but nothing has worked. Any ideas