Scripting Mail in Mountain Lion - Folder Creation takes FOREVER

I can’t figure out why this script takes 3 minutes to execute:


	tell application "Mail"
		
		(current date)
		
		set mboxName to "TestMailbox"
		make new mailbox with properties {name:mboxName}
		
		(current date)
		
	end tell

If I run this through a test account, it’s a snap. Very fast. But on my regular account, it takes a little over three minutes to complete.

The Activity Monitor doesn’t to show me anything out of the ordinary while it’s doing it’s thing. I don’t know where else to look to figure this one out.

Any assistance from y’all is appreciated.

Model: MBP Mid 2009
Browser: Safari 536.26.14
Operating System: Mac OS X (10.8)