My granddaughter is trying to send me 1 BTC with multibit, her program shows it is sent but blockchain.info shows it still there. She thinks she may have been offline when she sent it.
You wrote:
"If you see a triangle in the status it basically means the transaction was not sent to the Bitcoin network successfully.
When you do a reset blockchain and transactions it resyncs your wallet to what is on the blockchain.
It is what is on the blockchain that is definitive."
How exactly do you do a reset?
Multibit -> Tools (menu bar at the top) -> Reset blockchain and transactions -> new tab opens -> click Reset blockchain and transactions - let it sync
Multibit HD -> Manage wallet -> Repair wallet -> Next -> let it sync