Windows 7: Graphic problems with Bullfrog's Dungeon Keeper & Theme Hospital

After some trial and error and forum searches I have got both Bullfrog's Theme Hospital and Dungeon Keeper working on my Windows 7 laptop BUT the colours are all wrong as you can see from the attached picture.



I've tried changing the settings to 256 colours but no effect and if I muck about with the compatibility mode Dungeon Keeper will not load at all.

Has any veteran gamers out there managed to solve this at all as I know others must have the same problem!

I have Windows 7 Ultimate 32bit.

Thanks in advance

I have this same issue with windows 7 and on board graphics card.

The way I resolved it was switching video mode from 32 bit to 16 bit and then launching the game straight after the change. The game worked after this but every time I play the game, I need to switch video modes again or the colour comes back.