Resolution problem .... Please help mee !

[shufi]

Hi I'm new here and I have a problem with my mac osx 10.4.6.

I'm installed on HP Pavilion dv 6140ea. All is good, I wasn't have a problem with installation. When I'm go to system preferences in mac osx 10.4.6 and Im open "display" I saw only 1024x768 px option and I can't change to other resolution.

 

My laptop on windows had a 1280x800 px ressolution.

 

Information about notebook:

 

HP Pavilion dv6140ea

Intel Core Duo T2250 - 1,73 GHz

1GB ddr2 SDRAM

GF 7400Go with 256mb

120GB samsung

 

 

PLEASE HELP me.