Logs me out of Joomla 1.7 when leaving JX article

Hi.

I've installed Tools JX in Joomla! 1.7, and it works, and i made it look good.
But I have this problem:

I want to work offline until my site is finished.
Everytime I leave an article with tools JX installed (to display database table information), i am getting logged out of Joomla!. I then have to close down the browser, to be able to log in again.
And then again the same thing happens. I have to be online to get it working.
Do you have any idea of what this problem might be?

Some more questions:
Is it possible to make a table field containing a web address interactiv automatically?
So i.e. the table field content: "www.toolsjx.com" becomes interactiv in the browser?

Is it possible to write and place a heading above every field, explaining what this chart is all about i.e. When writing this above in the article, is is too far away from the display.

Best regards Morris