Dear Razzmatazz,
I have a new problem: on two occasions the synchronisation settings with my Microsoft Exchange account (ie with my Hotmail/Outlook) suddenly disappeared from my Galaxy Tab. One minute they were there and syncing of email, contacts and calendar were working perfectly, the next minute the whole account had disappeared.

My other synced accounts (Google Gmail for email only, Skype and WhatsApp) remained intact; only the main sync account disappeared.
I have twice restored it, and of course all the data eventually syncs back to my Tab. But it is a damn nuisance because I then have to recustomise it, especially my contacts (eg adding back photos, joining accounts and so on).
Can you offer any explanation as to why this happens - and how to stop it?