PocketMatrix

I'm using GAPI on my Dell Axim x50v, but I don't know how to get GAPI to run in VGA, instead of QVGA.

I added this resource to my project...
HI_RES_AWARE CEUX {1}

...which causes GetSystemMetrics to return the correct values.
GetSystemMetrics(SM_CXSCREEN); // returns 480
GetSystemMetrics(SM_CYSCREEN); // returns 640

But GAPI still runs in QVGA. GXGetDisplayProperties() returns these values.
cxWidth; // returns 240
cyHeight; // returns 320

What else do I have to do?