If you want to change your resolution for the Intel 915GM graphics card in your FS laptop, you will need to install a program called 915resolution. It can be installed by either using the Synaptic package manager, or by typing sudo apt-get install 915resolution into a terminal.
Not always needed in Ubuntu Dapper for most of the FS laptops with the 915GM card. as Ubuntu recognizes the 1280×800 resolution anyway after a clean install. I'm not too sure if some of the newer FS laptop's have better resolution monitors than mine though & still use the 915GM card, or if the only one's that can achive a higher resolution use the Nvidia card etc. (i'll have to check through all the laptop spec's for this..).