I bought 2 of the trophy cams. Both of the lense filters came loose in both of them, Cabelas took both back.
I had a similar experience, but then I read the instruction booklet and it said this is normal...until the camera is turned on they rattle around. I was ready to take them back until I read that. Not sure if that was the same issue with yours or not.
I have had both the 2009 model and I just bought a new 2010 model. The bodies are identical. The 2010 model does take a larger SD card, and the one I have has an 8 megapixel camera vs 5 in the older model. I've tried several different makes, and I must admit that all have had shortcomings. I do think the Bushnells are about the best camera for under $250.