nvidia how to prevent clone mode in linux mint 14 if hdmi tv goes off

nvidia GF 520 PCIE
how to prevent clone mode in linux mint 14 64 bit

if hdmi tv goes off, as i use my ps3 and sky box aswell as pc on my tv while im using my pc!

everytime i use on pc again i have to drag the settings in nvidia settings to place two screens side by side instead of the clone mode!

any ideas i searched this whole site for help before posting.

Thread moved to the "Other OS/Distro Talk" forum

you can save the settings you like to your xorg.conf file, but as for dynamic detection i have no idea do to do that