Hi, I've spent roughly two years with my 500D/T1i. Over the last six months or so a desire for something better has grown stronger and a couple of weeks ago a local rebate made me take the leap. I've spent most of the last week exploring my new 7D and it seems to offer most of what I was missing on the 500D - I'm beginning to like it a lot.


But...I ran in to a strange thing yesterday: When I turned on the switch it seemed to power up OK but then it did not respond to any buttons at all. I switched it off but the top LCD still displayed the settings. The only thing I could think of was to take out the battery and after that it seems OK again. I've had this strange behavior only this one time.


So, my question to 7D-users: Have you seen anything like this? Is it a known problem?


(The camera shipped with the most recent firmware.)