Danilcha

Thank you!

Thank you, Steve!

I'm fine with relative magnifier zoom, I just want it bigger. Now it is 2x, by the way. 3x, 4x, 6x, 8x would be nice.

Error 'closing environment which has not been opened' if the env contains curly brackets

It looks like you are right. Sorry, it's an invalid ticket. Thanks for quick rep...

\pgfmathsetmacro is supported, but other (like \pgfmathsetcount) not

By the way, there is another problem: sig-alternate-05-2015.cls contains \usepackage{amsmath},...