You need to find and download the debug version of the flash player. The standard install that you get while surfing the web is the normal player version. Blake
________________________________ From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of gr33neye501 Sent: Wednesday, October 29, 2008 8:51 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Flex builder 3 pro debugging doesn't work any more. While surfing a website firefox promted and intalled Flash 10, now my Flex builder 3 pro wont debug. can some please tell me how i can revert back to Flex builder 3 default setting. and get my debug trace to work. I seem to have flash player 10 active X also installed on my machine. Win XP Pro. Perhaps there is a way to use Flex builder 3 pro and the flash10 debug. If so how to i configure this. I have little experience in this. Pls Pls Help.