I dont mean to pick, but do you think there's any chance you could actually use a thumbnail image for these charts, rather than the IMG tags that you're currently using?
It really would make things a bit better in terms of layout - even on my 1280 res TFT I can't see all of the chart unless I scroll the window to the right.
Moneytec use a 100% width function on their forum, which accomodates this type of attachment. We use a fixed-width format at present, which doesnt.
This chart (attached) is how it will look. Much improved I think.
Thanks.