iSight cam on iMac wont come on.

[tammyinkansas]

I keep getting the message "No cameras connected" when i go to Photobooth.It worked just fine a couple weeks ago. I havent done anything except surf online since I had it on last. Any ideas?

[celticpride678]

Reset the SMC and PRAM

[GGJstudios]

Intel-based Macs: Resetting the System Management Controller (SMC) (http://support.apple.com/kb/HT3964)
Resetting your Mac's PRAM and NVRAM (http://support.apple.com/kb/HT1379)