After installing Lion and a fresh copy of FB4.5 I've lost the vertical bar (not sure of it's name) that runs just next to the scroll bar (on the right) and highlights the same variable, search results, etc. and allows you to quickly jump to them.
Is this a Lion issue or something in my prefs - doesn't help that I don;t know the name!!
The system requirements for Flash Builder 4.5 are available here - http://www.adobe.com/products/flex/systemreqs/.
Since Lion was unavailable at the time of release, it is unsupported. If a bug can be filed at https://bugs.adobe.com/flex/ with details of the issues being observed we would be more than happy to have them resolved in a future release of the product.
Thanks an dwill do.