Mail signatures vanish - Console error - Bug?

I'm on Mountain lion 10.8.1 but 10.8.0 had same issue.

I use iCloud on my Mac, iPhone and iPad

The problem is: my Mial signatures disappear. I've seen this in other posts but no solutions worked for me (and they were generally pre-Mountain Lion).

What happens?

I create a Mail signature and add it to iCloud account in Mail through the Preference pane. It works.

I quit and relaunch Mail and it is gone.

I tried many steps to fix this:

- Kill Mail Preferences

- Delete ~/Library/Me/Mail/v2/Maildata/Signatures

- Delete ~/Library/Me/Mail/v2/Maildata/Signatures & Accounts.plist

- Delete ~/Library/Me/Mail/v2/Maildata

- Delete ~/Library/Me/Mail/v2/Maildata and recreate iCloud account

That didn't work so I looked in Console.

Multiple messages of librariand: unable to download file://path/path/etc.

The path was to the folder : /Users/pat/Library/Mobile%20Documents/com~apple~mail/Data/MailData/

So I did the above and deleted this folder and recreated the account. The folder is recreated by iCloud but still the signatures disappear.

I went to root/Library/Preferences/ and found a Mail pref there - killed it too.

No avail.

I'm pretty much at the end of what I know how to do with this. ANy suggestions?

I also disabled and re-enabled the account (as well as deleting it completely).

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My hunch is because I have a long list of errors of the type [TIMESTAMP] librariand: unable to download file://path/path/etc.

It must be something to do with iCloud. But how do I reset this?

Any help would be really appreciated.

Thanks,

Pat