Help With Vaio RX550

[V DidDy 210]

Hey everyone,

found a vaio RX550 lying around the house

converted it to OS X 86 (Jas 10.4.7, going to update to 4.8 after i post this)

anyways, everything is working perfectly

and the 1.5 P4, though a little underpowered, does everything really nice (nothing hardcore on this just a kit seeing how i have a 17in macbook pro)

but question,

it's using it's standard VGA output, and as a windows or linux box it could support really high resolutions,

i have a 23in lcd HD monitor and i wanted to get the highest possible resolution outta it

not just 1024x768 i can't stand stretched images!

any help would be much, much appreciated

-V