I have Flex Builder 3 Pro, but I can't use the flex profiler because it won't start. Actually when I click the Profile Application button, it opens the profiler perspective, compiles and loads the application n the browser but never shows the Profiler config window nor starts getting data from the app. It is like the profiler never connects or never tries to connect to thw swf app. I've already forced the -debug=true in the compiler options and followed every step in flex developer reference to use the compiler, but no way, it won't start. I've also disabled anti-virus software and firewall but no progress.