CFT not allowing me to insert images into post using internet explorer

wierd one here – I’m trying to insert images into my post, when using ie the image disappears after clicking update. its ie8

Its only in ie (not firefox) and I’ve disabled all plugins one by one and its definitely CFT – I’ve disabled all other plugins and just had cft on, and the issue occurs.

I’ve checked it on another site with a completely different template – it also happens there, and it only occurs when trying to insert the image from the visual editor. If you insert while in html, then switch back to visual and click update, the image disappears.

Any ideas anyone? Don;t say use firefox!!! (unfortunately for my client its not an option)