The Java applet likely is streaming that data, and is thus discarding it as soon as it's not needed anymore. The only possibility I can think up would be to get a program that automatically takes screenshots at very short intervals and can use some sort of naming system so you can keep them in order. I don't know of any such program, but that doesn't mean it doesn't exist somewhere.
I would like to record a streaming flow of stock bid and ask prices, that show in a small window of a full page from the Lycos web service. My wish is to record this to a cd rw or a dvd rw drive so I can slow the sometimes high speed flow and read the pricing information. I am running windows XP on a home computer. I have a HP dvd 640i DVD writer that I could install into the computer if this would be the best way to record this. I also am on a dial up connection that averages around 42kbs. I am able to view this data and another Java window data stream with out any problems. I have two monitors and a dual monitor card with processor and 128 mb of memory. I would appreciate any suggestions. Thanks.