Hey, boys, I do appreciate your help. I must confess I thought I wasn't going to obtain any answer.

Sincé you spent your time I think I must explain my case better.

A Clipper (DOS) program of mine still gives me some bread. So I know Clipper.

But I don't know video cards, motherboards and their drivers altogether..

My client was using my programa during 11 (eleven) years with Windows ME. He decided to change all machines, bought new ones and every with Windows 7

Vendor (technician) let machines working with my program apparently without installing appropiated drivers. Just generic.

More than a year it was working like that.

I insisted my client to change my old program and use my new one.

As I developed for 1024x768 i found video card doesn't support more than 800x600, good for DOS, poor for VFP and my chose of definition.

I called technician and I told him: Change video card or install drivers, i can't believe this monitors don't support up to 800x600

Technician (I must name him in any way) went and install Intel drivers for that video card. He just got 1280x720 at most. Good for me.

Well. Sincé they're not going to use my new program for a couple of weeks Clipper must go on working.

But he discovered Clipper doesn't work any more.

What did he do? Restore Windows to an earlier point and Clipper goes on but we are again in 800x600 at most.

I know I face this kind of problem before but I can't remenber how I solved it.

NTVDM is running almost ten times but never open DOS Windows.

Perhaps if I wait...

Ten times I try to open my program.

Video card wasn't changed, just its drivers were installed as It should have to be at first but you know, No matteir if machine Works, program must work. And if for getting success you have to uninstall drivers..

If you're still Reading this I thank you very much.

And for the "compañero" who wants me to greet Cristina, I'm proud there are people in the world that knows my president. That's good.

Sincé she seems to be teaching all the world how a country must be directed... hahaha.

Thank you again. You're very clever.

Héctor