RGB White displays yellowish

When I open CDPaint RGB White appears yellowish. However, when I open CDDraw RGB White is white and when I then select Edit Bitmap from Draw and CDPaint opens, now RGB White is true white.

I've selected RGB profiles for the default and document profiles. I've also selected the North American Prepress presets. I running Windows Vista with a high quality Samsung flat screen.

How can CDPaint White look yellowish when Paint is opened from the desktop but display as true white when opened from CDDraw? When the two instances of Paint are open side by side on the desktop and displaying the same image, the same colors display differently.