I have to give Bushnell Kudos...
I bought my first Bushnell trophy cam in the summer of 2010, and right from the start I had issues with run away picture taking. I sent that one back to Bushnell and they replaced it with one that, well, started smoking when I opened it one day retrieving the card(no joke). I sent that one back and they provided me a new camera that worked well for late fall/early winter 2010 and for most of 2011, when it started to have issues. When I brought it out this year, everything worked except it started to runaway on me. I sent it back (2 year warranty), and sure enough a new one arrived on my doorstep.
Now I know that Bushnell had some issues with motion sensors back in 2010, but the other Bushnell Trophy Cam I have from 2011 has worked flawlessly. I was always impressed with the 8MP photos from this cam, and am looking forward to putting it to work this weekend.