Hi, I'm using version 6 from 17/07/2007

Unfortunately I can't replicate the error myself as it's one of our clients suffering from the problem - and they are the first client to be using the .NET editor for uploading documents so I'm not certain if the problem is unique to them. I'm told it is intermittent so it isn't all the time - as for one document I'd have to check with them. They made it sound like it could be any document.

What object is missing in the error message example and what are the reasons for it being missing?