screen shot?
how'd you make the planes? using geometry or attaching them to the camera?
when you open a scene so you have the grid? or by blank do you mean nothing (not even the grid) is there and the grid is turned on?
i think i might know what you mean though, it happens on my laptop, if you just change to a different view (like see all four viewports at once) then switch back to a single viewport everything is fine.
that's a "Ch" pronounced as a "K"
Computer skills I should have:
Objective C, C#, Java, MEL. Python, C++, XML, JavaScript, XSLT, HTML, SQL, CSS, FXScript, Clips, SOAR, ActionScript, OpenGL, DirectX
Maya, XSI, Photoshop, AfterEffects, Motion, Illustrator, Flash, Swift3D