HI, I will comment on the gfxmenu stuff
grub menu should have a line at the top that reads
gfxmenu (hdx,y)/boot/(name of image)
if /boot is sub-folder to / then above line is true
otherwise you have a /boot partition and you remove the /boot bit from the stanza
altho it may be technical here is a wiki
http://www.sidux.com/index.php?modul...ka&tag=Gfxmenu
2) post the specs of your monitor and the video card.
generally speaking some ppl use the nvidia or amd closed source drivers which can mod your xorg file
3) screen saver...don't use gnome so can't help unless you use kde.
4) kernel must have acpi stuff and modules loaded to use power management