Outlook 2007: 'Your Out of Office settings cannot be displayed, because the server is currently unavailable. Try again later

Outlook 2007: 'Your Out of Office settings cannot be displayed, because the server is currently unavailable. Try again later. users using outlook 2003 can configure out of office without no problem. We are using exchange 2007. Using out of office via Webmail works fine.

What am getting is this from the olkdisc.log are

Redirect check to http://autodiscover.gorkana.com/autodiscover/autodiscover.xml starting
3572      27550078      11/28/07 16:52:56      Redirect check to http://autodiscover.gorkana.com/autodiscover/autodiscover.xml FAILED (0x80072EE7)
3780      27553125      11/28/07 16:52:59      Attempting URL https://mail.gorkana.com/autodiscover/autodiscover.xml found through SCP
3780      27553125      11/28/07 16:52:59      Autodiscover to https://mail.gorkana.com/autodiscover/autodiscover.xml starting
3780      27553937      11/28/07 16:53:00      Autodiscover request completed with http status code 403
3780      27553953      11/28/07 16:53:00      Autodiscover to https://mail.gorkana.com/autodiscover/autodiscover.xml FAILED (0x80004005)
3780      27553953      11/28/07 16:53:00      Autodiscover to https://gorkana.com/autodiscover/autodiscover.xml starting
3780      27554953      11/28/07 16:53:01      Autodiscover request completed with http status code 502
3780      27554953      11/28/07 16:53:01      Autodiscover to https://gorkana.com/autodiscover/autodiscover.xml FAILED (0x80004005)
3780      27554953      11/28/07 16:53:01      Autodiscover to https://autodiscover.gorkana.com/autodiscover/autodiscover.xml starting
3780      27555437      11/28/07 16:53:01      Autodiscover request completed with http status code 502
3780      27555437      11/28/07 16:53:01      Autodiscover to https://autodiscover.gorkana.com/autodiscover/autodiscover.xml FAILED (0x80004005)
3780      27555453      11/28/07 16:53:01      Local autodiscover for gorkana.com starting
3780      27555453      11/28/07 16:53:01      Local autodiscover for gorkana.com FAILED (0x8004010F)
3780      27555468      11/28/07 16:53:01      Redirect check to http://autodiscover.gorkana.com/autodiscover/autodiscover.xml starting
3780      27555468      11/28/07 16:53:01      Redirect check to http://autodiscover.gorkana.com/autodiscover/autodiscover.xml FAILED (0x80072EE7)

my exchange server is grkms1 domain is gorkana

Please help