4:3 full screen problem?

[Walt Disney]

hello, i have bsplayer on but working with something else and sometimes i press a key and then Bsplayer puts the film in full screen (4:3) and then i select " Original " and everything is fine.

But the problem is when I exit full screen and go back again to full screen
Again the 4:3 full screen

????

I have to restart my pc to have everything fine again

Any suggestions?

Thanks

[Walt Disney]

well i press Pan-Scan in Auto and now it's fine

Don't know why.