Running XP on Dell Dimension 4550. IE 6. All pre-installed at the factory. Cannot read any flash, even though it is installed (or so it shows through Belarc). I get the tri-color icon, but that's it. Occasionally, I get the pop-up that calls for me to "install" the reader and wait for the movie, which never comes and flash is still missing as a useful tool. Any help will be appreciated.