I'm having the same problem - "Previous Tx is unspendable"

From 1Jig98ukzPTxzGU9bGTfxB9fqwe3rKcDtb which is my Blockchain wallet address for receiving newly mined coins from Eligius.

Sending to 1DrZjFeT6ajM4WBEfTgDobtm1Ee7hy8sfP

Any help appreciated!