Hmm, what is your graphics card or graphics chip if its onboard? That's the crucial thing. Also, you should find your latest drivers and install them, that can fix a lot of problems. If you are certain you have the latest drivers and it still doesn't work, it may just be your graphics hardware sucks - if it's nVidia or ATI though, I'd be more worried.
I've run advanced Construct games like the RTS demo with no problems on an old SiS 650 chipset - sure it ran slow, but displayed correctly. So if you have latest drivers etc, I'd suspect it's your hardware.