Re: Rubber bands
"I used to clean mice bals & rollers, while waiting for NT to finish whatever user install\reboot I was performing at the time as a courtesy detail "
Similar here. Part of the field engineers kit was foam cleaner and screen cleaner. It was normal for the cleaners to never, ever be allowed to touch computers so they were often quite mucky. I did one call to a factory where the computer screen was almost too dull to see, even with brightness and contrast turned up. Normally that would be an EOL CRT or an HT driver issue. In this case it was just a matter of cleaning the screen then turning the now blindingly bright screen down to more normal levels.