Thanks again. Sure I'm sorry to bother.
I have found something that depends on my PC configuration.
The one with the Radeon non Mobility is now running well. The solution is this: sfc /scannow
Instead of this, the notebook still has the problem. Even re-installing the Graphic card drivers, scanning for some corrupted system files (see above) and updating the video drivers. This is equipped with a Radeon HD7450 Mobility. I think this is the problem.
As test I have tried the games above (TheOracle11 and the default game) and on the desktop PC they are running well. The other PC still cannot be used with AGS.
Ok, now I have to find a working configuration with my laptop. I mean AGS compatible.
Thank you again for your effort.
I have found something that depends on my PC configuration.
The one with the Radeon non Mobility is now running well. The solution is this: sfc /scannow

Instead of this, the notebook still has the problem. Even re-installing the Graphic card drivers, scanning for some corrupted system files (see above) and updating the video drivers. This is equipped with a Radeon HD7450 Mobility. I think this is the problem.
As test I have tried the games above (TheOracle11 and the default game) and on the desktop PC they are running well. The other PC still cannot be used with AGS.
Ok, now I have to find a working configuration with my laptop. I mean AGS compatible.
Thank you again for your effort.