Images are inverted in Safari & older IE

[simbob]

I have some gradient images on my website which are 1px repeats as part of a CSS rule used for the divisions between my sections. These images are somehow being inverted in Safari and older versions of IE, but fine in Firefox and Opera. Any suggestions as to why this may be occurring?

My site for ref is www.fogi-design.co.uk

 

[PixelPusher]

I don't see any issues, they look consistent in FF, IE8, Safari 4.0, and Opera 9.6? Maybe try a Crtl refresh? delete cache?