Transmission/utorrent dmg won't install

[bobok]

I cannot seems to install any of the torrent client. 1/4 of my upper screen get shaded and the whole deskstop just freeze. I am new to mac os and hope someone would help. My Mac Os is installed with iakos 5i. I install office for mac on a dmg file with no problem but installing any of the torrent client would not work for me.