The following site: [url]http://www.peterperret.com/[/url] has a fireworks MX menu set.
When mouseover occurs on the menu items (first two are active), it often
results in vertical lines associated with the slices showing on screen.

The effect of the front page is then changed with lines that have nothing to
do with the site except they do occur.

Would like to find solution. Can anyone help?

TIA