Outlook Appointment Issue

[Ken]

I have an Administrative Asssistant who regularly sends
appointments to several collegues within the company.
However, there are two employees who recieve these
appointments as text only. The contents are there, but no
buttons to accept/reject, etc. For their part, both of
these employees have successfully recieved appointments
from other employees in the company. I am having a great
deal of difficulty finding any troubleshooting onfo on
this.

Any thoughts?

Thanks in advance,
Ken

 

[Guest]

Just to clarify, he is using Office XP. The two with
problems are using Office 2000.

Thanks.