Are you still having the trouble? I see your theme as blue now...
By the way, I made a modified version of the blue theme for one of my groups such that it gradiates back to dark blue before starting over. That way, it doesn't have the line everytime the pictures starts over, but has a nice continuous pattern. Maybe you'd like it. :)
I wanted to change my theme to blue by webmaster but it made it wood board instead. Anyone have an idea on fixing it or just use a different theme.