I recently added Flex SDK 3.2 to the list of compilers in my Flex Builder installation. (I know I am working with kind of outdated SDKs :( ).
Ok, so when I changed the SDK version to 3.2 for an existing project, I couldn't find the properties buttonMode, useHandCursor. And the Filter classes like GlowFilter and DropShadowFilter were not available. I was able to use them once I switched back to SDK 3.0.
Did I mess up something or where did those properties and Classes go?
I've had similar issues when using Flex Builder 3. The only solution I could find was to add the playerglobal.swc to the build path. The SWC is located inside the SDK that you're using:
Adobe Flex Builder 3/sdks/3.2.0/frameworks/libs/player/9/playerglobal.swc
Of course if you're publishing for Flash 10, then use player/10/playerglobal.swc