Hey Benny -
I have exactly the same situation here. At one point, I was able to user my
Outlook 2003 calendar. Just today, started getting the same message as you
when accessing my calendar using Outlook (which previously displayed and
notified me of upcoming GW appts).

I didn't see any responses to your issue and wondered if you'd figured it
out on your own.
Thanks
june

"Benny" wrote:

Hello...I just installed Outlook 2003 on my desktop to manage mail, contact,
tasks, and calendar but we are using Groupwise 7 as our mail server. I
installed the new Outlook connector for Groupwise, however I am running in
to a problem trying to access my calendar in Groupwise using Outllook. I get
the following message when I click on the Calendar link. Any suggestions?
Is this a known issue?

"Unable to display the folder. One or more parameters passed by the calling
application were not valid"

I live out of my calendar so any help is greatly appreciated! Thanks in
advance!
Benny