A bad disk is not a valid excuse. You should have duplicates of all the files you work on. Never go more than 30 minutes without saving your work. Read the text before the class discussion. Students are cautioned to keep abreast of day to day schedule details.
Students are responsible for everything discussed or announced in class.
READ YOUR E-MAIL frequently. When you have software problems use the following sources for help 1. help facilities. 4. reference books in library. 5. on-line tutorials 6. It is very difficult learning to use complicated software packages.