Hi berettaguy17:
I currently have 9 Wildview EZ Cam set up in to distant locations. These are the older version camera. I have pretty good luck using Sandisk and Lexar cards. Both are 2GB. When removing or installing an SD card, make sure the switch is turned off. If this fails, with the switch in the off position, remove the batteries and test with a digital meter. If the batteries show below 1.5 volt each, this maybe part of the problem.
Another solution is to reformat the card. I don't use the 4 "C" batteries as I live in southern Canada. In the cooler months, these batteries put out less voltage. I have gone to the external 12 volt.
The booklet that comes with the camera, gives a list of SD cards that have been tested and there size. I did try one Kodak SD card, but it failed to work. I'm not sure if I reformatted it or not. I hope this helps. Good luck.