Dear Larry , As explained in the link you have given..
I edited the file using
I uncommented the line
I added supported resolutions in the order of my preference..I read that GRUB2 will try the resolutions in the order of preference separated by ","
My LCD monitor resol is 1360*768
so , I modified the line above as
I gave 1024*768 to be on the safer side if the native reolution did not work
I saved and rebooted ,
GRUB2 menu appears beautifully now!