If you are having this problem and you upgraded from Jaunty and you hand edited grub/menu.lst, install startupmanager and run startupmanager. The upgrade process will not modify a manually-modified grub/menu.lst, and there appears to be an incompatibility with the intel drivers and the older kernel.
If you are having this problem and you upgraded from Jaunty and you hand edited grub/menu.lst, install startupmanager and run startupmanager. The upgrade process will not modify a manually-modified grub/menu.lst, and there appears to be an incompatibility with the intel drivers and the older kernel.