I had the same problem as you,because you must not use size in full screen but in start
In preferences use definition you want at start switch to (your size for me 800*600*32bits) and not in full screen
Use overlay mode 2 to autostart the player
It's work !!!!!!!!
Excuse me for my english but i'm french and i don't write very good!!!
Mail me at cricridam@wanadoo.fr if you don't have understand.[/url]