Duplicate notes? Notes not syncing?

Is anyone having problems with duplicate notes in Mountain Lion?

When I first open up Notes.app on MacBook, I am greeted with "This Mac can't connect to iCloud because of a problem with (my iCloud account)."

I open iCloud Preferences, but everything looks fine.

And these settings are exactly the same on my iPhone 4S.

It looks like my MacBook thinks I have two iCloud accounts in the Note.app but I should only have one. Unchecking the Notes box in iCloud Preferences, only takes one iCloud account off of notes. So, even with iCloud turned totally off and signed out, my notes application still thinks I am signed in.

So when I add a noted from the MacBook, the note gets duplicated just seconds afterwards.

Sometimes it even makes three copies.

None of the notes from my Mac sync to my iPhone and none from iPhone sync to my Mac.

Sometimes, the application on the Mac will crash, interestingly enough exactly at the time when my iPhone and Mac *should* be communicating together.

From Crash Reporter:

Process: Notes [542]

Path: /Applications/Notes.app/Contents/MacOS/Notes

Identifier: com.apple.Notes

Version: 1.0 (81)

Build Info: Notes-81000000000000~3

Code Type: X86-64 (Native)

Parent Process: launchd [151]

User ID: 502

Date/Time: 2012-07-26 16:55:08.354 -0500

OS Version: Mac OS X 10.8 (12A269)

Report Version: 10

Interval Since Last Report: 37865 sec

Crashes Since Last Report: 3

Per-App Interval Since Last Report: 1636 sec

Per-App Crashes Since Last Report: 3

Anonymous UUID:

Crashed Thread: 10 Dispatch queue: NSManagedObjectContext Queue

Exception Type: EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unable to generate SQL for predicate (folder == $folder) (problem on RHS)'

abort() called

terminate called throwing an exception

Anyone else have these issues? Or just me?

Thanks in advance.