Recording Software Fail

Does anyone know any good FREE screencast recording software? I’ve been using Camstudio for a while and with my first 5 tutorials it seemed great. Now it randomly decides to hate me and flash black screens in the middle of recording. I’ve finally gotten to the point of starting the Backbone App video tutorial series but I can’t get the recording to work right, so it’s delayed until I can find something that works. If I can’t find something within 24 hours, you’ll receive written tutorial for something else instead until I can find a solution.