New MacBook Pro Headphone Jack Issues

Hi, I just got my MacBook Pro barely a week ago and I've noticed an issue when using headphones or external speakers when plugged into the headphone jack. It seems that the computer won't recognize that I have something plugged into the jack, sound just keeps playing through the laptop speakers and not the device connected. I can duplicate this at will:
Play music through headphones plugged into computer, hit pause. Disconnect headphones and play music through laptop speakers, pause music again and connect headphones. Hit play, and the sound continues to play through the laptop speakers and not the headphones... The only way I can remedy this is my restarting my machine (PITA) or by shutting the lid and waking the computer up. (Still a PITA) Is there a fix for this? I'm updated to the most recent version, 10.6.8 . I never had this issue with my old MacBook Pro pre unibody. I've read elsewhere that another solution is to go into System Preferences > Sound and click "Output" and change the setting "use adio port for" from "sound input" to "sound output" I don't even have those settings listed in my Output tab... Please help!

Well, the issue has been resolved. The solution was to reset the SMC/PRAM. I thought about doing this but I didn't think I would need to on a brand new computer . At least its back to working order and I didn't have to be without my machine.
To anyone with this issue, just reset the SMC/PRAM
SMC Reset: http://support.apple.com/kb/ht3964
PRAM Reset: http://support.apple.com/kb/HT1379

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