Notes/Domino 6 and 7 Forum : iNotes Problem

I am having a problem with iNotes and was wondering if anyone had encountered it before.

My problem is that when I try to create a calendar entry, or a notebook entry I am not able to use the rich text editor, I simply get the broken graphic/activex control icon where the rich text field is located. The catch is this only happens when I access iNotes from home. If I access it via the VPN that we have set up with our client site it still works. I have also tested it in the office, and it works there as well.

The machines OS's are;
Home: Windows XP Professional (all current patches applied)
Work: NT4 unsure of which service pack we use
Client Site: Windows 2000

All three machines are running IE6. I know that my home and work PC have all the critical patches applied, but I am not sure about the PC I use at the client site. Also, the URL iNotes has been added to the trused site list in all three servers.

Anone have any ideas as to what the problem may be?

Thanks,

Bradley