Game installs from setup.exe just fine, integrity check ok. But on launch, DOSBox emulator keeps crashing ("DOSBox encountered problem, needs to close etc").
Wondering if I have missed some compatibility adjustment or other config setting? Wasn't expecting to have to do any adjustments as the GOG version of MYST ME launched and played perfectly, and it's a similar vintage to GK1 (1993).
This is what I've tried so far, with no results:
- Figured maybe a conflict of some sort, checked and found a previously-installed DOSBox application, so uninstalled this, deleted and rebooted. No luck.
- Uninstall game, reboot and reinstall x 2.
- Deleted first setup file, redownloaded and re-installed x 2.
Running a Dell Latitude laptop, WINXP (SP3), nVidia Force2Go graphics.
Have also posted this problem to GOG support team and supplied DxDiag if required.
Any help (not very tekky-headed here, please bear with me) gratefully received.

In the game start menu folder (Start Menu > All programs > GoG.com > Gabriel Knight 1), you'll find a 'graphic mode setup' tool. Try changing the graphic mode.

Will do Namur - thanks. Will let you know how it goes - may be a coupla days before get the chance to try.
2 DAYS LATER: Namur = Genius! Did as instructed, selected OpenGL, rebooted and game now running - tiny screen but will work on that - many thanks!
Sorry guys - being a newbie, I should have marked this as a question/problem but didn't realise until too late.
Namur has provided the SOLUTION here, will try to do something to ensure N gets due credit.
SOLUTION!