I ran into the really nice problem of not being able to use Flash’s build in classes today.
Two things to check when you get an error like “The class or interface ‘flash.display.BitmapData’ could not be loaded.”
Turns out I had the player settings wrong. Pretty easy to overlook and it gives you a lot of aggravation.
I ran into the weirdest problem with IE today.
To test some functions I wrote for a Drupal page I outputted some values in a comment area (between ““) before the html-tag. In FireFox this works perfectly fine, but when I tested in IE my layout was ruined. Where the site was supposed to be centerd it was left aligned in IE. Also the min-height was neglected in IE. A strange problem but the solution was to remove the comment and everything worked like a charm again.