D.A. to Dr. Murray -- Don't Blame Michael

Dr. Conrad Murray is blaming Michael Jackson and the fledgling economy on his inability to pay child support -- but the District Attorney of Clark County, Nevada ain't buying it.

In a response filed today to Dr. Murray's objection, the D.A. shot down Murray's claims -- saying, "Dr. Murray's inadequate child support payment history began before the events of June 25, 2009 [the day Michael Jackson died] and Dr. Murray has shown a pattern of failing to abide by child support orders."

Dr. Murray is due back in court on November 16, and the D.A. wants Murray to make a full disclosure of his finances before then.