Your HD has bombed or at the very least needs a clean install. Or you could be lucky and startup in safe mode and it'll all be sweet.
Do you have an external drive with a bootable system on it? Or a backup drive?
@TRA started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Your HD has bombed or at the very least needs a clean install. Or you could be lucky and startup in safe mode and it'll all be sweet.
Do you have an external drive with a bootable system on it? Or a backup drive?