Thanks for your prompt answers. I relooked at the latest change and discovered not only were my seats changed, but the flight times were drastically changed. Instead of arriving home at 5:20pm, I was now arriving at 12:53 am-which I had been trying diligently to avoid! I searched the forum and found out my flight could be changed for free because of the drastic changes. I called and the agent switched my flight so I now arrive home at 5:37pm thru Philadelphia, and got me good seats, including the bad seat on the outgoing flight! Hopefully, there won't be more changes!