I'm running Exchange 2003 SP2. When a user tries to open up a large (106 addresses) distribution list from their contacts on the exchange server via Outlook 2003, they receive "Can't open this item. There is not enough memory available on the Exchange Server computer to complete this operation. Please contact your administrator."
We've researched this and found it could be an issue pre SP2 if the Dist list was opened and edited w/ the web client, but SP2 contained a correction for that. I've added a GB more RAM, same problem. If I copy/move/export the contacts to a PST, I can open and edit them fine. Move them back, and same error.