display help

[ray ray]

here is my ?
i have a hp pallvion dv 6208 nr notebook 1024meg ram windows vista preminum home nvidia geforce go6150 video card svideo out to tv

the ? is when i run hoster and send the singers display to my tv it stays small when i double click to make it larger it throws the screen back to my laptop screen but if i send the singers display to tv and manually make it fit to screen by expanding box with mouse arrows it works great is this the proper way are am i doing something wrong i noticed when i tested expannded with a vga monitor i was able to just click the singers display on extended monitor it worked great not have to manualy expand box any help would be great