I made a time-critical minigame, so - to prevent stopping the game timer with alt - I turned off the Window caption. This works good on most of the computers I've tested the app, but on one computer some of the screen is literally cut-off about 10 pixels up and down (so I see about 80% percent of the application screen in the middle), and Windows (XP) display Windows 3.11-like caption for the game when I open the file load/save dialog or get a popup message. I ensured that the same cncs232.dll is used on all computers. What could be causing this problem? I'm going REALLY REALLY mad with this. I haven't used any of the extensions like Windows Messages which could interfere with this.
All computers have Windows XP SP2. It works well on IBM laptop r50e with Intel graphics, and the issue described happens on 1.8 ghz system with ATI Radeon 9600pro.
I was Googling on this issue, and accidentaly stumbled upon Window messages object documentation. I forgot that it has the 'set client size' function. I now forced that size to 640x480 and it seems to be okay. But my app is now somewhat bigger (0.09 kb) and is commercially crippled, but whatever - it's more compatible.
BTW I'll maybe release the English version of this on The Daily Click if you guys want. It's actually a typing game - you can customize the text for retyping. While you're retyping it the game monitors your time and mistakes and then gives you a grade based on that. You can save your results in a file and review them later, even the retyped text.