Hi everyone i was wondering if you could help me with a problem i am having with a DNN site.

I am currently turning a site over to DNN and everything is going pretty well, all the pages and the modules work on my test machine other machines in our office and my machine at home.

But on my managers machine, (different office completely) they keep having problems, when updating text boxes and content on the DNN site. They can view and go around the site and everything is ok, but when they go into updating html/text modules they keep getting errors, i have a screen grab here:-

http://www.minedigital.co.uk/errorpage.jpg

I havent had a chance to go adn check it all first hand as our other office is to far away.

Does anyone have any ideas what may be causing this at all?

Like i said it all seems to be working fine on all the other machines we have tried it on, but the office thats having the problem is the one where the site will be edited from now on so you can see our problem.

any suggestions or help would be greatly appreciated