Last week one of my hard drive failed. At that time I was dual booting XP & Ubuntu from that drive, so I lost my bootloader grub. I installed ubuntu on my other drive. Howerver, I have 512 mb ram in my pc. Ubuntu was running good but at times it seemed slow & the issues with my graphic card(intel 82845g/gl Brookedale) & linux has, worsened my situation. Because of my graphic card Ubuntu crashed alot.