One user on Windoze XP with Java 7 update 51 and IE 8 tries to add an attachment to WebAccess. The little bar graph (in green) starts incrementing, but half-way thru the browser bar graph at the bottom of the browser gets to 100% and generates the following error in the bottom left corner of the browser 'AttachmentSize' is null or not an object and therefore the attachment never completes.
This happens with any size attachment.

Any ideas, suggestions, complaints etc. etc.