I just had a flight change, too. I got an email 2 weeks ago telling me that my flight to LGA through Cleveland starting in Detroit, is leaving an hour earlier, getting me into NY WAY too early. My return flight was also changed. I'm not thrilled with the new changes CO has put us through lately.
1st, I miss a trip to Alaska last December b/c my father-in-law died and they dropped me to silver Elite. I had been Gold for years, spent a fortune on their airline- even paid first-class round trip to London and still was only a silver. Then I meet a man in the President's Club who was as close to Gold as I was and they just GAVE the status to him, but not me. Now the rates are up and the schedules are changing. Sometimes I just don't know.