Hi, Murray, I think there must still be some bugs for Max to work out. I get a lot of timeouts and error messages when posting messages, too.
When you send a personal message, scroll through the list of numbers by single-clicking the scroll bar on the right side of the list of names - that should move through the names one at a time, or you can shortcut past a lot of names by entering the first letter of the recipient's name.
-Joe Offer-