On Feb 4, 2012, at 5:25 PM, Jason Grout wrote:

> Possibly because you are running 4.7, and maybe it happened a lot in 4.7.  
> When you are editing, how often are you evaluating cells?  

Not very often because I'm usually writing directions for my students.

> Do you know what the worksheet timeout is set to in your server (log in as 
> the administrator, go to the Notebook settings page, and look at the Idle 
> timeout)?  

It is currently set at 120 seconds.  Is there any danger in making that number 
1000 or whatever?

> If you can replicate it on sagenb.org, that would be fantastic.  The entire 
> notebook has had massive rewrites since the version you are running, and at 
> least one bug dealing with saving text cells was fixed last July.

Unfortunately, I couldn't talk my IT department into doing the upgrade this 
semester and it isn't up to me.  

Dana

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