MBP Does Not Recognize External USB Devices

MBP does not "see" external USB devices (such as Garmin Nuvi GPS) or any thumb drive. No external USB devices show up in Finder nor does Disk Utility see them. No cable issues. Have tried restarting several times, but to no avail. This MBP used to recognize these USB devices, but no longer do so.
I have seen this question posed several times in forum, but no suitable answer. Don't know if it is H/W or S/W problem.

Hi Terry Temple
Is there at least any power going to the USB ports? ( as in if for example you plug in a USB light, will it switch on? )
If there is power in the USB ports it might be a software problem.
Try resetting the SMC see link: http://support.apple.com/kb/HT1411
also try re-set the PRAM see link: http://support.apple.com/kb/HT1379
However if you do not have any power at all it probably is a hardware problem.
Is it still under warranty?
Regards,
Andrew
Message was edited by: iddrew

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