Years ago I served as a marine in CA. I kept my legal residence in MO the entire time and timely paid my tax returns during my time in CA. Now, I get a notice from the CA FTB that I owe $700+ in "TAX" from 2003--no explanation as to what/why I owe money. I never owned property in California. Is it even possible that I could owe money from that long ago to California? What gives?