A:AnswerDoes your Toshiba All In One have WiDi? Even if it does, from my test, Push2TV only mirrors your screen. You will not be able to "extend" your desktop by using this device.
A:AnswerTypically Apple products do not support WiDi or Miracast which are required for Push2TV. If your device does support these then follow the simple instructions on the Netgear website. If your device does not support Widi or Miracast then Apple TV is your solution.
A:AnswerIt's possible your device doesn't stream in 1080p. All Maracas devices don't output to full HD (1080p).
My suggestion would be to refer to the device specifications.