I just switched one of our clients to Exchange 2003 on SBS. When we were configuring Outlook on the clients we selected to enable Exchange Cased mode . I have read some post that suggest that it cusses problems. This is a small office with GB Lan and very few clients. The only reason that I did this was because we have laptops that may be occasionally not connected to the network and may need access to outlook data. So, are we getting ourselves into trouble? What is the disadvantage/ advantage? Is it too late to change back to none cashed mode.?