Outlook 2000 displaying half message

I am running outlook 2000 on windows 98. One of the machines has started begun only displaying the first half of the message, then creating some symbols and leaving the rest of the mail blank. It only does this for larger e-mails. However if i open that same mail box from another machine it displays fine, so the problem must be to do with the decoding.

I have removed office completely and reinstalled it, however the problem is still there. I have been told the company had the problem before and it was an easy fix, but not related to outlook, however nobody can remember what it was.

It anyone can suggest anything, or anywhere to go then please do as i don't know what else to try now???

 

Can nobody suggest anything i could try?