Outlook Calendar Slow in showing Availability when select many DL'

[padawan.1974]

Does anyone know if there is a limitation in the amount of Free\Busy data
that Outlook 2007 (or 2003 for that matter) can display simultaneously on the
Calendar. We are having very high latency when we choose multiple Groups
within our GAL (3-4 groups with around 10-15 recipients each) and after
expanding to see the availability of each individual, we experience a long
delay (> 2 minutes) to show the availability of the next groups availability.

 

[Nikki Peterson]

Uncheck all planner options per article Q324374
http://support.microsoft.com/kb/324374/en-us

Turn off the Show Popup Calendar Details option or the Show Calendar
Details in Grid option.

Delay Occurs When You Open a Message in Outlook 2002 with Instant
Messaging Enabled
http://support.microsoft.com/default.aspx?scid=kb;en-us;290025

Remove the link between Outlook 2002 and MSN Messenger, perform the
following steps:

1. Start Outlook.
2. From the Tools menu, select Options.
3. Select the Other tab.
4. Clear the "Enable Instant Messaging in Microsoft Outlook" check box in
the Instant Messaging section, then click OK.
5. Close and restart Outlook for the change to take effect.