Been noticing a funny white flash on a CSS web page, even on this sample one (but not the FOUC which everyone seems to talk about.

Anyway, might’ve found an article at Position is Everything, which is about how Internet Explorer caches images
THere’s another article here, too ...

...and now I know what I’m looking for, there’s more at fivesevensix

Thankyou all for sharing this knowledge!

I had wondered why Dave Shea hadn’t mentioned this in his CSS Zengarden book, but then realised there is an article on Mezzoblue