Wrapping multiline input with a \begin{align} ... \end{align} block fails to align equations by their equals sign. Example input that demonstrates the behavior:

\[ \begin{align} 
(a+b)^3 &= (a+b)^2(a+b)\\
&=(a^2+2ab+b^2)(a+b)\\
&=(a^3+2a^2b+ab^2) + (a^2b+2ab^2+b^3)\\
&=a^3+3a^2b+3ab^2+b^3
\end{align} \]

original bug report (refers to above example):
"I am having a problem using the \begin{align} tag. L2p appears not to obey the tag. I've tried both inline and display environments. In addition, the png images end up with strange vertical spacing if I attempt to separate lines by "\" in the display environment."