I use Apple's Mail program to check my .Mac email.
I have the main Mail account and my boyfriends .Mac account was setup as a secondary email only account (so no web space or other .Mac features).
When checking his mail messages, the entire program crawls. Spinning beach ball and then after 20-30 seconds, it will work. If you click on a different mail message...it starts crawling all over again. But when i check my mail, it's fine.
I've deleted his account and re-added it several times, but i get the same results.
this just started happening 3 days ago.
Update: Apple said via tech support to delete my .mac sync prefs in the System Preferences (even though the other account was the troubled one). we'll see if this worked.