closing back down to desktop when entering Heron

[Golder]

Alright, I finally managed to get that game running and enjoyed it so far, I managed to get only once in the Heron's loft and now, when I try to get back in the Heron's Loft, the game just closes down and goes back to desktop in windows.
I already have the v 1.2 and it should be ok running as I run Doom3 nicely on this computer. Anyone has any idea?

[Catman]

It may not like your video drivers, either because they're not up-to-date, or because they're too up-to-date. If you don't have the latest drivers, upgrade -- if you do have the latest drivers, revert to an earlier set.