Changing the width of the center column

Is there a way to change the width of the center column in the admin panel, or do I have to change the width of #productGeneral in the stylesheet?

Only 2 possible ways

If your side boxes are large make them narrower
or make the main wrapper wider.
Side boxes & columns in the admin
Main wraper in Stylesheet

kobra:

Only 2 possible ways

If your side boxes are large make them narrower
or make the main wrapper wider.
Side boxes & columns in the admin
Main wraper in Stylesheet

I have Column Right Status Global set to 0, but the width is still set to 150px. Even if it's turned off, do I need to make the width 0?

My wrapper is the size I want it as-is.

I have Column Right Status Global set to 0, but the width is still set to 150px. Even if it's turned off, do I need to make the width 0?
This is why we always ask for a link to your site as if it is not responding to the admin setting it is most likely hard coded into your template

Here's the link

I can verify that this is not in your stylesheet
Double check your admin settings

In Configuration->Layout Settings I have Column Right Global set to 0, and Column Width - Right set to 0. Is there anything else that would need to be changed, because it doesn't seem to be working.

Again, I can achieve the correct effect by modifying my style sheet and giving a width to #productGeneral, but I'd rather not hard code anything that will effect changes later.

Your #productGeneral is taking the full width now. Are you expecting the attributes to float and double up on lines? That won't happen without the right settings and perhaps some restyling of attribute classes.