Nightlong?

[portarinos]

It must be an impressive game but i never got my hands on one. Back in the day, i remember the review of Amiga Active and there was a reference about some possible problems. Take a look at page 51 here:

http://amr.abime.net/issue_1081_pages

Also, take a look here

http://hol.abime.net/977

and see if any of the patches are any good for your problem.