Installed the navboot-toggle version on my MkIV sat nav with no problems at all...complete with a custom logo

All I did was take the original V26 ISO, and replace the navboot file with the one supplied by amibishop, and saved the ISO, then burnt to a CD.

I downgraded from V26 to V24 (couldn't find the V25 CD), and then upgraded to the perspective/toggle hacked V26 version.

I haven't used the V26.09 beta software at all, so I've no worries about anything breaking.

Weirdly you can only choose perspective mode when in split screen. You can then revert to fullscreen after with no issues. Shame there aren't any road names in the perspective view though

NavMan