OS X V10.7 Lion :: Brand New IMac Runs A Disk Check On Start Up?

Feb 16, 2012

I've owned this iMac for less then 20 hours  

Mac OSX 10.7.3
21.5"
2.5 GHz Intel Core i5    
4 GB 1333 MHz DDR3 ram
"Mid 2011" 

It was purchased brand new. I used it for one hour yesterday, run the set up, install updates. thats all I have done with it. Today I awake to it presenting a loading bar of some sort under the Apple logo and Spinning wheel. I researched the bar, and found that it was a progress bar for a disk check, and since it doesnt complete (I let it do its thing) something must be wrong, However when i run disk utility, it can find now error in the disk. but my sound and video play pack does not work unless i restart the machine. this seems like an unessecary process. what are the possible causes?

Info:
iMac, Mac OS X (10.7.3)

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