I have two different Exchange Servers and associated accounts open and active at the same time in my copy of Outlook 2010. That’s a new feature in the new version of Outlook, by the way: multiple Exchange accounts visible in one profile – Quite a great change over previous versions!

I’ve had a problem ever since installing this beta copy of Office 14, though. In the to-do bar (that sidebar thing on the right side of the Outlook window that shows you a bunch of info such as monthly calendars, upcoming appointments, contacts, tasks, etc.) the calendar from which appointments were being displayed was not the calendar I wanted. The info being shown there was not useful, because that calendar wasn’t the one I use.

So, I was trying to figure out how to change the calendar displayed there to the one associated with my other Exchange account. How Outlook chose which calendar to display, as far as I could tell, was a matter of which Exchange Server I set  up first when I installed Outlook.

I tried a number of things, including looking at every setting available in Outlook’s Options screens, changing the default mail account in the Outlook account properties dialog, and searching the registry for info, but in the end it was something much simpler. It took a bit of trial and error, but I finally figured it out.

What fixed it was calling up the account info screen (File > Info), then opening the “Account Settings” dialog, switching to the “Data Files” tab, highlighting the OST file associated with the account that contains the calendar I wanted to have displayed, and then clicking the “Set as Default” button. Then I closed the dialog box, shut down Outlook and restarted it, and lo and behold the correct calendar was showing. Freakin’ magic, I tell ya.

You’d think this solution might be a bit easier to find (I searched far and wide in the help and on the web), but at any rate it’s fixed now. And since I will probably forget the next time I need to do this, here it is recorded for posterity’s sake.

The Outlook Blog has a bunch of cool info about the Outlook 2010 version that users should find interesting and useful. Anyone know any other cool little tweaking tricks for Outlook 2010 that people should know about?