I can upload images at clker.com, find them on the hard drive and they look fine there.
But when I upload them (to squidoo.com specifically), most come out with a black background. I found that if they turn gray when I mouse over them on their site, they will do this when uploaded. Images that are just a black outline drawing will disappear completely- it will be just a black box when uploaded, though they look fine on the hard drive. Any ideas?