Ok I apologize I didn't see that Joseph's formula didn't have the e in the log argument. Thanks KConrad for pointing that out! Now this seems to be consistent everywhere!

That's what I got too when i manually derived the formula of E[log(p(x))]. however, the wikipedia formula for entropy of a normal distribution differs by a term of 1/2... Would you have some insight on why that is? Thanks, -Octi