Q: My computer does not pick up airplay. Any ideas?

Do you actually have a supported Mac?

AirPlay Mirroring in OS X takes advantage of the hardware capabilities of recent Macs to deliver high frame rates while maintaining optimal system performance. The following Mac models support AirPlay Mirroring when using OS X Mountain Lion or later:

• iMac (Mid 2011 or newer)
• Mac mini (Mid 2011 or newer)
• MacBook Air (Mid 2011 or newer)
• MacBook Pro (Early 2011 or newer)
• Mac Pro (Late 2013 or newer)

I suspect there is an actual model number somewhere that would reveal whether AirPlay is supported on your specific Mac or not, honestly though, I"m not certain as I do not own a Mac.

Try searching the Mac forum or posting there for additional support.

You can find your Air model by putting the serial number in here:

https://selfsolve.apple.com/agreementWarrantyDynamic.do

If your Air is mid-2011 or newer, it should support Airplay mirroring.

Info about Airplay mirroring and troubleshooting:

http://support.apple.com/kb/HT5404