How to determine bug severity level?

[Sarah Reichelt]

> I am a bit uncertain about how to rate the severity level.  Actually, I
> think I do understand how to rate the level, but I disagree.
>
> This new bug (see yesterday's thread: 'List fields MultipleHilites
> property') causes my application to return bad data.
>

In my opinion:

If your bug loses data or returns wrong data, then mark it as "critical".
If it crashes or stop your program (or sections thereof)  from
operating, mark is as "blocker".

Cheers,
Sarah