Slitherine

When trying to start Mon Bodonicus I get a message, Sorry the Mons Bodonicus file is invalid.

The other scenarios seem to work fine. I patched to 1.50 and have all expansions.

Any suggestions?

Thanks
John

update to 1.5.1...
For me Mons Badonicus is working well in FoG 1.5.1.

Cheers