Another lightwave question. when I render a picture or scene, the render box says which things I have selected, and it always says, “antialiassing off.” My first question- how do I turn antialliasing on? My second, how do I make higher resoultion renders?
David
Select ‘Camera’, and you can set your antialiasing in there… 
(And once you set your antialiasing, you can also select the ‘Enhanced’ button under the antialiasing button on your desktop. I quite often use ‘Enhanced Low’ as my preferred setting, but lately I’ve been trying the ‘High’ setting…The ‘Extreme’ is only really useful for animation, so there’s no use in going any higher than ‘High Enhanced’ for a still image…)
Although I work in default sizes generally, you can set the output in your ‘Render Options’ panel…
Hope that helps! 
As Stonecutter said… both resolution and anti-aliasing are set within the Camera Properties dialog.