After my monitor, it was my computer. Yes, my 3-year-old machine is crashing very regularly now. This time, even System Restore didn’t work. I had to call in my computer technician and he re-installed Win XP. It took about 5 hours (and multiple attempts).
The balls that I have shown in the last few days (fixing my monitor, buying the new bass pedal) make me feel that I am in for a new computer pretty soon. I am already in talks with the computer guy. I think it will happen this weekend. Godspeed!