So the videos are there, we still will allow you to finish up your prelab, you know, by tomorrow afternoon, by tomorrow evening, the last lab ends at 7, so if you didn't get it done for your lab yesterday because of the difficulties with site-maker we will extend that, just email your GSl, work out getting that prelab 1, we just want you to do it, so that you are ready to do some of the other things we do in labs and homework, so you get your point if you do it, you get no points if you don't ...so complete that please. 