Personally, I have never experienced that issue, after 4 years of working with the software. Diligent saving always takes care of the issue. There are also "Backup" and "Auto Recover" settings. You could backup the most recent 5 saves, and have Auto Recover trigger every 15 minutes. Losing 5 hours of work should never happen with all those tools to prevent it.

I did enable auto-recover but Qlikview has a tendency to bring up a prompt asking me if I want to recover files even when this wasn't necessary.

I'm very glad that YOU never experienced that issue. The issue occurred, for some reason, because Qlikview paused after a load and before it refreshed the screens and displayed a prompt that allows you to add select boxes. I thought it was ready, and I saved the file.

The fact remains that I saved diligently, and the software became unstable and lost all my work. But I guess you e never had that experience before, always fun though when some smart-arse tells you that something shouldn't happen but it does happen.

This happens to me in Spotfire any time I'm messing with calculated values. So annoying.