US v. Grant, No. 12-50209 (8-15-13)(N. Smith with Gould and Du, D.J.).
Sending a letter to the court, with your new address in the block, is not the same as informing your probation officer of your change in address. The probationer here changed addresses, and failed to inform her probation officer. The letter she had sent to the court asking for early termination, with a new address, did not act as informing her probation officer. The fact she also subsequently picked up a state conviction didn't help. The 9th affirmed the violation and sentence.