When I start Flex Builder in Beta 2 build 3.0.183654, the
flex start page doesn't detect my flash even though I have version
220.127.116.11 installed , as per
http://www.macromedia.com/software/flash/about/ So, I just see a 'Hey get flash here' prompt.
So, I had to go into 'welcome.html' and comment out the
DetectFlash call and just assign the variable to true instead to
get that page to render. Then it works fine, as I have flash well
above the required version.