striped visuals

I am experiencing problems with the visualiser with scenes appearing with vertical lines on them?
has anyone else experienced this or know how to remedy this?
and yes my card is an ati one! a radeon 9700 pro, 1024ddr ram, athlon 2800+xp processor

has anyone else experienced this or know how to remedy this?
and yes my card is an ati one! a radeon 9700 pro, 1024ddr ram, athlon 2800+xp processor
