I have installed Ubuntu server 10.04.4 on VirtualBox but the screen appear too small. I read some guides that i have to change settings in grub to change the screen size, so i go to /etc/default/grub, opened grub in editor and edited this line #GRUB_GFXMODE=640x480 to GRUB_GFXMODE=1280x760. This is a resolution that my video card supports.
Then i updated grub and restarted the machine but it didn't work. When the machine starts loading in the beginning for a few seconds it goes into the screen resolution i have set but then goes back to the initial small screen resolution.
Any idea why it doesn't work?