One USB port works, one doesn't
One USB port works, one doesn't.
What is likely wrong and how can I fix it?
2.2, 2.4, 2.5, or 2.6 GHz Core 2 Duo processor
I'm gonna agree with Mayer's diagnosis: on these computers devices that require shadow power from the USB port (if they have an optional dedicated power outlet that is not being utilized) the USB port on the left side (the same side as the magsafe adapter) is probably the one that is going to work.
In the unlikely case that it not a shadow power issue, a faulty USB cable MIGHT explain it, but my money's on USB power.