How to Change Display Resolution ?

[ShelaxMac]

Hi Everyone.

 

I have Successfully Installed SL On My System With ATI 4650 Card.

 

My Card Detected with 256 MB Graphics Memory.

 

Any Possibilities to Take Advantage of My Full 1024 MB Graphics Memory.

 

And How to Change Default Resolution to 1280x1024x32

 

I Have Tried Kernel Flags "Graphics Mode"="1280x1024x32"

Graphics Mode String 1280x1024x32.

 

Plz Give Me Some Info How to do That?