Does using the swap image require image height & width to be stated in Mac OS. I am doing a photo gallery using thumnails. The photos are different sizes (landscape & Portrait). This works in Netscape, Mozilla, IE without stating the height & width, but not on Mac OS. If i click on a landscape thumnail first, then a portrait second. The portrait will be stretched into landscape even though a height & width to the picture hasnt been stated. Any answers. Hope this makes sense.