Originally posted by Affe I´m having the same thing. Zig-zag shaped strips so ugly that I´m almost turning Nikon...
Benjikan´s talk about the card got me thinking... So I formatted my card after two years of use.
My first impression is that the strips are gone or wery reduced.
if it is zig-zag lines and not the vertical banding issue i have
than it might be RF interference
this will happen if you are close to a gsm (cellular) base station, e.g often on building roofs
search for it on the Internet, you,ll find example pictures