Hi Kathryn,
At the risk of bad news, please read this post and Bif's subsequent post :-
http://forum.cyberlink.com/forum/posts/list/4678.page#18079
There may be other reasons but it is sometimes difficult to tell.
Let us know what OS and system you are using and maybe someone will be able to offer another way to check. ie if the firewire port on the computer is functioning, etc. Normally windows would be able to 'see' the camera but exactly how to check depends on your OS.
Basically you need to check if it's PD that is malfunctioning, if its your computer i link, your i link cable, or the i link on the camera.
Normally, you could do that by putting your camera on another machine, or vice versa, trying another cable etc etc
There is a potential problem that if your computer or camera port is 'shorted' it may, only may, affect any other firewire/i link component attached to it. So borrow another camera to test from someone you know well/ who has good insurance.
Hope its not that.
Cheers
Adrian
Life is really simple, but we insist on making it complicated. (see below)
Confucius
AMD Phenom IIX6 1055T, win10, 5 internal drives, 7 usb drives, struggling power supply.