New to Macs and not at all sure what the problem is, but it appears that certain peripherals such as my Kodak Digital camera dock are not being recognized by the computer. It is plugged in to the USB port and there is power to the camera dock, and I downloaded the easyshare disc, however the camera won't download and I can not seem to find the photoprinter listed in any of the files. It has worked in the past, but I switched from Leopard to Snow Leopard and then back to leopard again and somewhere in all of that it seems to have lost some of the peripherals. The external hard drive also seems not to be recognized either, but not at all sure that it is not defective, have new one on order. Would appreciate any input.