How to change the screen resolution in Oracle Enterprise Linux on Vmware

I found a lot of trouble related to screen resolution which was struck to 800x600 or 600x480 resolutions  after installation of oracle enterprise linux as guest OS on vmware de. Then i went through many blogs and forums to change this problem and at last i was able to fix it. I am summarizing the steps to fix this issue.
• Install Oracle Enterprise Linux • Login as "root" user and install vmware tools • After installation of vmware tools, restart it and login as a root user • go to System -> Administration -> Screen. In Hardware tab, click Configure for Monitor Type and select a suitable monitor type of high resolution e.g. LCD Panel 1280x800 etc. • Now go to etc/X11 and open XORG.CONF file • There will be a section "Screen" in that file which will contain a subsection "Display". Inside that section there is a line  'Modes "800x600" "640x480"'. Add a suitable screen resolution which you want to add e.g. i added "1280x800" and "1024x768" for my LCD. Now new line will be "Modes "1280x800" "1024x768" "800x600" "640x480". • Save it and restart the OEL. Now go to System->Preferences->Screen Resolution and select a suitable screen resolution now and enjoy.

taken from : https://sites.google.com/site/technicalinfosite/tips---techniques/howtochangethescreenresolutioninoracleenterpriselinuxonvmware