I get video files through email and the sound works however, the sound won't work on youtube and I checked the sound in System Preferences and it's on. I also tried sound buttons and they don't work but they did last night.
I have an iMac 10.8.8. When I receive a video as an email I can open and it works just fine, sound and all. I tried youtube tonight and the sound won't work
although it did last night. I checked preferences and the sound is on. I also tried the sound keys and still no sound. I also updated Flash but still no sound.
HELP!?
iMac, OS X Mountain Lion (10.8.5)