update video drivers ?

Geee... I was afraid you where going to say that.

So much for the quick and easy solution. I have a laptop... figuring out what drivers this thingy requires and finding them is like pain in my brain... but heck... here goes...

I'll post the results next year or so. 😵

Updating video drivers didn't work. 😒

try fixed mode enabled.
it might be that your video card doesn't support the old dos resolutions.

Unfortunately that isn't the problem. The screen changes the resolution correctly. Tried it out anyway, but DosBox still freezes with a black screen.

I had the same prob on my laptop (Acer Desknote 1700). My drivers are all up to date, too. When you said that older versions worked fine, were you referring to dosbox? Should I downgrade to an older version?

Yes, I was referring to DosBox. The last version I used, 0.5something, had no problems when switching into fullscreen mode.

well dosbox changes internally a lot each new version.
Maybe the next version will be able to switch to fullscreen at your pc.

Well, I downgraded to version 0.58 and it works fine in fullscreen mode, so I'm happy.

---that was me again, by the way

New Dosbox user here.... so perhaps a stupid quesiton. What's fixed mode enabled? I'm basically having the same trouble, DosBox freezes when I switch to full screen from the prompt or Alt-Enter. I've got the current drivers... on a SiS 315 video.
If full screen doesn't work, how do I change the size of the window? And does anyone think downgrading will help with fullscreen for me also?

Thanks...