One contact randomly deleting phone number?!

[alangrehan]

Hi there,

I've been on mobileme for a year now with no real issues.

I use the calender and contacts mainly and sync it all between my phone and outlook pretty successfully.

Randomly my Dad's iPhone number keeps dissappearing. Every so often I'll go to the text message app and his converstation will have his number instead of his name (as if you'd gotten the text from someone not in your phonebook).

Then if I go into his contact everything is there (name, address, email, other phone numbers) except his iphone number?

This is concerning as I'm worried it might be happening to other contacts I don't use as often and I'm missing it.

Any ideas as to a cause and a solution?

Thanks