D-Link 2100+ IP Camera

I Just purchaced a D- Link 2100+ IP Camera. It got its IP Address ok and went right through the configuration, but would not connect to the camera (video) Just said connecting. So I called D-link Technical support and the said the camera was defective and I should eith bring it back to my reailer or DO an RMA with them and the would replace it with a refirbished on. Well I went the rout of going back to my retailer. They got me another one. Had the same problem. As I was moving the camera the picture finally connected. Come to find out if you put pressure right in the middle top of the unit the camera works. I still had the one that I was suppose to bring back to my retailer and it was the same problem. put pressure in the middle top of the camera and it works. Has anybody esle had this problem It has to be a major issue if I order two brand new cameras and they both fail like that.. These cameras are great when it works. And has a lot of nice features for the price. But It has to work!!