I plan on buying a used Imac 17 to 21 inch for my mother in law, she only sends email and does some on line shopping. Most of these machines have Lion or Snow Leopard on it, can I do a remote desktop on these IMacs? Sometimes she calls and I have to fix her Windows computer (now broke) over the phone. I just thought it would be easy if I could log into her desktop and see what is going on? any suggestions on software? I would only log in from my Mac Mini. Thanks!