A tale of a stuck progress bar:<br>We were kids, my friend got the permission from his parents to buy a wireless DECT modem for his pc. We bought it, we installed it, everything went smooth till one step where the progress bar just got stuck. After half an hour we got the impression the progress bar even moved backwards! After one hour, again, did the progress bar move backwards? We took a closer look ... "signal strength".<br>TL;DR: If a progress bar gets stuck, check if it is a signal-strength indicator. :-D