[venturi]

Aeon, hope I'm not too late...

What you need to do is apply a "California Hot Patch". They work great for things like this or when you knock a hole in your drywall with a door knob, fist, etc...

Basically you get a piece of drywall about 3" in diameter larger than the hole you are going to patch. on the backside of the drywall cut a "circle" the same size/shape as the hole you are patching and then *gently* break away the drywall surrounding it being *very careful* to not damage the paper on the front side. Then just generously mud the hole and surrounding wallboard apply the patch and mud over it several coats until you have a smooth wall again.

Go to HomeDepot and ask them about applying a "California Hot Patch" - they'll likely be able to demonstrate visually what I just described. They may even be selling 'kits' for this now...