Can you use flash in AF-C mode on X10?
Thanks for taking the time to draw up a checklist. I went through all of your suggestions including a full reset and still no flash or any other focus modes available other than AF-C. It's looking more and more like this is a result of the sensor replacement that was done... perhaps they forgot to reconnect some wires or something. At this point, it looks like I'll have to ship it back to them and hope that this time they do a more thorough job of checking that everything is still in proper working order before shipping it back to me.