FLEX 2.0

I tried flex and the so called RIA(Rich Internet Application) today ... made a Hello world .. understaood the basics of MXML , ActionScript , Class Libraries , and DataServices.How all these pieces fit together .... Beleive me flex is so so powerful ... i can now create applications so easily at just click of mouse ...

Moreover the IDE "Flex Builder" is a*w*e*s*o*m*e* i mean just take a simple example of making a simple page that has "Name Label" and "TextBox" and "Address Label" and "TextArea" in order to make this page in design view the IDE gave me so good aligmnet indications ( both vertical and horizontal) i never saw that in an IDE befor ( may be u can say at least the ones i used )

Another plus point .. using flex i guess i can make the same application easily for desktops and mobiles ... withput much of a coding headache... i need to explore more on that ...

But i get an error during debugging mode

C:\WINDOWS\system32\Macromed\Flash\Flash9d.ocx
Flex Builder cannot locate the required debug version of the Flash Player. You may need to install the debug version of Flash Player 9.0 or reinstall Flex Builder. Do you want to try to debug with the current version?

Trying to figure out what does that mean ... on forums
:)