Hey Alphonsus
This is my first post for months and months and months - but I've been here as always reading on the forums and I think I can help you.
I think yr problem is DirectX 8.1 - I found my WinUAE setup to react in all sorts of way while using it - usually ending in a crash. This also happened to me in a few native games, including Warcraft 3. If you upgrade to DX9 it should solve yr problem
Its good to be bk