connecting pc to tv

[barrowmanandrew]

i have connected my pc to tv using an hdmi lead.
i have done this because, i wish to use my pc on main tv now and again as i now have a wireless dektop.
problem:
when moniter and tv are both connected, i get moniter working as normal, desktop background on tv.
if i disconnect moniter, all functions transfer to tv.
my question is:
is there anyway i can control which moniter is active without pulling vga lead in and out?
thanks in advance..

ps. i am using an acer aspire running windows vista...

[dasteph]

i have connected my pc to tv using an hdmi lead.
i have done this because, i wish to use my pc on main tv now and again as i now have a wireless dektop.
problem:
when moniter and tv are both connected, i get moniter working as normal, desktop background on tv.
if i disconnect moniter, all functions transfer to tv.
my question is:
is there anyway i can control which moniter is active without pulling vga lead in and out?
thanks in advance..

ps. i am using an acer aspire running windows vista...

i have a nvidia card in my pc with it comes a nvidia control panel witch allows me to set up multiple displays and lets me select witch displays to use.

[barrowmanandrew]

thanks, i have nvidia control panel too.
i can use to switch between moniters. but i cant get both moniters to work at same time?/
is this correct?

[Cronus]

Under "Display" there's an option called "Run multiple display wizard".

[dasteph]

thanks, i have nvidia control panel too.
i can use to switch between moniters. but i cant get both moniters to work at same time?/
is this correct?

there should be a setting which allows you to clone your moniter desktop to your tv so both show the desktop if this is what you mean, i do this with my laptop if i connect it to a tv the only downside i find is the resolution on the laptop changes to the tv resolution but i think in the nvidia control panel you can change the individual resolutions for each moniter hope this is of some help.