Site messed up after reordering pages... XML error reported

[mev]

I get the same sort of error message on XML-response from server when re-ordering (some of the) pages in the pages list. I Made a gif of the error-window and tried to attach it here (20k only), but it says: upload folder is full.

In my case I don't believe it has something to do with the charset encoding (I now see that pages have both charset=iso-8859-1 and utf-8 in its output, shouldnot be so I gues ? But exactly the same goes for another site at another server and that one does not have this probl or error messages at all).

Anyway the enclosed error message also says somewhere (4th line):
.
This only happens in IE&, not in Firefox.

As far as I know js is not disabled in IE, but I remember having probs sometimes opening pop-ups especially 'browse server'. Sometimes... other times it works well.

Could it be a server problem, or a browser one??
Anybody any idea in which direction to search??

Thanks loads!!

Willemijn

If someone wishes to see the exact error text and to recieve the gif, let me know !