DreamPassport MPEG support is limited due to size limitations. As far as
some pages not fully loading it may be too graphic intensive or lots of
javascript ads stopping it. PW handles javascript better (I've noticed some
ads, log-in sites that use it, etc. work on PW but not DK/DP). Sometimes
hitting "reload" will bring up the cached portion while the rest of it loads
fully. But generally on DK I've found rebooting the DC works best if pages
get too slow. As SONICR mentioned cookies have nothing to do with it, they
aren't stored on DP3.