How long are we talking? I think it's set to 5 minutes? I'll check when I get home (in ~ 7 days
).
If shorter than 5 I'll extend... That being said what do you think would be a good length because I know what you're saying it has happened to me a few times.
If you are the only one using the system consider having the always sign in check box. On many of my PC's I'm logged in always the moment I open the page.