Transparent material - reflection problem.

Hey guys!
I have a material:

http://puu.sh/q6L03/6cd476a434.png

http://puu.sh/q6L1M/0e94639ca0.png

It’s look almost good from the dark place, where is no strong reflections:

http://puu.sh/q6KXC/94f6f0cdeb.jpg

But in front glass reflecting black rectangle, it changes its position and size depending on the angle of view.
How can I get rid of the black rectangle?

http://puu.sh/q6KX9/c8fce1ba71.jpg