Interesting - I coped all the DLLs from the Mozilla Nightly/bin directory to the Kmeleon directory and all DLLs and XPTs from the components directory to the Kmeleon components directory and things now work fine :-)
Anyone else having this problem (before and after doing the above) ?
Yes, I experienced the same, but didn't find out what this triggered, I got it e.g. sometimes when pressing back when loading wasn't finished yet (at least I believe that was it), after "tuning" Kmeleon to a nightly the problems went away (at least I didn't see it yet again)
Ooops, forget my former comment, I did see it again, after sending a comment to this forum, the page with the posting form would come up again and again, no matter what address you enter (or how often you press back)
Ya for get my comment too :-) This is happenning again - somehow this stopped hapenning for some time. On further investigation, it is not just restoring from minimize. This seems to happen more-or-less randomly.
Another strange thing - it starts redrawing the page correctly when you start using the scrollbar. Looks like the page is there but another page (most often it is the home page) just gets drawn on top of it.