When looking at this website - http://www.halcosoftware.com/about.html I've been told that if one moves up and down using the scroll bar, white lines appear on the page. My client is using IE6. I haven't been able to reproduce this effect on the 5 machines that I've checked.
This is a screenshot of what they are seeing
Does anyone have any idea of what could be causing this? My guess is that their browser doesn't have full css support since this doesn't happen when they visit sites that are coded with "old school" tables.
Many thanks and happy new year!