For a very long time, well over a year, and over numerous new versions (I update to the latest build every fortnight) I find that Netsurf (dev versions) cannot refresh graphics properly.
Let me explain. Wild Flowers http://wildflowerfinder.org.uk/ If I visit (on my hard drive) numerouus pages of my wild flower website (URL above) which uses a lot of jpegs on one page, and first visit a lot of pages with loads of jpegs on each, then scroll up and down a page with 8 or so jpegs on it, eventually the images will start to break up, un-able to keep up with the scrolling/refreshing, and show a horizontal venetian blind effect, consisting of repeated sections of the same image separated by 1/4 inch or so, to form a venetian blind. No matter how slowly the page is scrolled (downwards) the refresh is unable to keep up and shows the image in various mondrian-like strips across. It looks pretty, but that is all. I have Choices > Memory = Auto Handling, Auto Handling. Choices > Cache = 6.4MB (i.e. max) Iyonix RO5.13, Netsurf r xxxx -- Cheers Roger James Brindley discovered canals when he accidentally fell into one.