Here is a good explanation: <http://science.howstuffworks.com/question51.htm> Also, interestingly, cats and dogs have green or blue retinas, and the problem occurs with them too. On Sunday, February 16, 2003, at 12:50 PM, Syed Zeeshan Haider wrote: > What is this "red eyes" problem technically? > Why does it occur? > Any remedy? ----------------------- Erik Mattheis GoZz Digital <http://goZz.com/> Flash and ColdFusion Development Minneapolis, MN -----------------------