Seems to work fine for me, not come across any bugs yet... The map screen only has something to see if you've collected map pieces otherwise it's just a blank screen, maybe this was the problem?
It's still as frustratingly brain twisting as ever and the presentation is way better than the speccy version! I'd be interested to know if that's all your own work or have you based this on a 16-bit version? All in all, this is definitely going to be booted up every time the Sam comes out to play! Thanks again! Rob.