New install of 1.5.15 can't add graphic content to article - Joomla! Forum - community, help and support

when attempting add image article via image icon @ lower left of screen, freezes. won't come ui window choose anything; buttons unresponsive; can't quit. attempts make @ least quit have made see me 2 admins logged in.
suspicious looking element: @ bottom left below content entry window, displays path: p.

i installed 1.5.14 on godaddy remote web domain server , experimented function , seemed ready work ok (it brought expected window choose image.) before it, notice of new version (1.5.15) came out first tried patch, when started new problem. since freeze-up, i've used separate ftp program (cyberduck) transfer graphic files server.
i did complete install of 1.5.15 several times no avail. i've tried different browsers; doesn't seem factor.

i'm brand new user, attempting put site , maddening! i've read manuals find download, watched video tutorials nothing tells me why happening. can beginner?!
domain server system info seemed sufficient: linux / php ver 5.2.4 / mysql ver 5.0.45 / apache ver 2.26
i'm using mac osx

this sounds me problem browser.

have tried installing clean joomla install on local system .