IMac Sound Failure.

I recently downloaded a cracked iShowU HD Pro. I wanted it for my CoD4 clips, but it was laggy so i quit it and deleted it.
So, the problem is, now, my iMac doesnt play any sounds at all. I can click the buttons for it, it will go to the max bar, but no pops on each level of sound. This is depressing. Help.
(I have had a similar problem with iShowU, but I noticed the sound worked, just i had it maxed out and it was low. So i quit iShowU, and it went back to regular sound. In this case I have no sound at all.)
PLEASE HELP
Thnx

De nada amigo!
Thank You for extending the courtesy of awarding to comments that are helpful or provide answers in the Apple Discussions, as this is not mandatory, but it is much appreciated!

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    com.apple.iokit.IODVDStorageFamily          1.7.1
    com.apple.iokit.IOCDStorageFamily          1.7.1
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    com.apple.iokit.IOSCSIArchitectureModelFamily          3.2.1
    com.apple.iokit.IOFireWireFamily          4.4.8
    com.apple.iokit.IO80211Family          420.3
    com.apple.iokit.IOAHCIFamily          2.0.8
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