Pinnacle/Dazzle Signal Problems

[AaronAMV]

I'm using my mom's laptop to get footage of me playing the 360 using Dazzle (can't use mine since my desktop is upstairs), but I can't capture footage because it keeps saying there isn't a valid input signal detected. I've tried the USB in every single port she has on her computer, and it just won't work. She got it to work 3-4 months ago, but she forgets how... The thing is, that you can't replace the USB part of the Dazzle, only the a/v cables.

Is there any way to perhaps make the signal stronger on the USB stronger? Other USB cables work, just not the Dazzle.