It happens the same to me. 😵
My videocard is a Radeon 9600 Pro. I'm using the most updated drivers for my silly OS (windows 98 ) and DirectX 9. I tryed several SDL.DLL versions and DOSBox versions, but the result was still the same.
That was strange, because any other SDL application just works fine into my system.
Eventually I opened my control panel and disabled my sound card (a Vortex 1 based sound card) and now DOSBox works! 😳
But of course I cannot keep it disabled 😒
I think I should disable DOSBox sound emulation or checking (dunno what) 😕 EDIT: I found that I don't have to disable the whole audio card, disabling the Gameport Interface (or removing the analog joystic 😳 ) is sufficient.