Our company moved to a new location and we have difference conference rooms.  
I added them myself with Microsft Office Outlook 2003, Windows XP SP2 x32
using Microsoft Exchange Server 2003 SP2 x32 Standard Edition.  
I did this a few days ago.  Users are complaining that the conference room
listing is gray diagonal stripes in Outlook 2007 (and in 2003).  "I" myself,
a domain admin, see the conference room as "normal" I think white or blue
data (if any), but when I log on with a general user, I see the gray stripes.
I have gone and logged onto Windows XP SP2 x32 and opened Office 2003 and
Office 2007 and went to into Tools, Options, Calendar Options..., Resource
Scheduling, and selected the top top options, Automatically accept meeting
requests and process cancellations, and Automatically decline conflicting
meeting requests.  I selected OK three times and then closed Outlook and
logged off.  I am not sure what else to do to get it to work.  The Exchange
server has been restarted and this happens for multiple users on multiple
computers.