Please help. I joined today and I have a picture that I want to post with some text. When attempting to upload my image (GIF 8.7MB)

I get the following error message

"Your submission could not be processed because a security token was missing.

If this occurred unexpectedly, please inform the administrator and describe the action you performed before you received this error"

I've attempted to post in various forums : Finished Works, Sketch Book, Critique and Analysis (forum names from memory so may not be exact) and still the same problem.

This very post that I'm typing now may be my first one that goes through as it has no attachments.

Well, I'll find out in 5,4,3,2,1,....

Well... this post worked 'cos I came back and edited it (evan though I couldn't change the thread title from "posting problem" to "image attachment problem")