Google Docs problem: "Unable to upload from given URL"

[Torsten]

Hi, has anyone gotten the following error message when using Google Docs?
"Unable to upload from given URL."

I could create Google docs and insert photos by using the "Upload from URL" function up until last Friday. Now, I still can see the thumbnail when I use the the 'insert image' button but then the photo itself doesn't load. For some reason, this happens only when I try to upload photos from our server. However, the URL's are fine when I try to open them in a normal browser.

What might be the problem?
Many thanks,
Torsten

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