You need to ensure that you're copying and pasting your Bitcoin address exactly as it is presented; Bitcoin addresses are case-sensitive and you should remove any spaces at the beginning or end of it that you might accidentally have included when copying. Please also note that your Bitcoin address will always start with the number "1". Addresses can also start with the number "3" but on Silk Road you'll never get one starting with another number or letter other than "1". If it starts with a letter then it is an alt-coin address and if it starts with the number "3" it is a multi-signature address. Libertas