If you press Command-M before attempting connection (switch to window mode), does anything pop-up in the background? You may like to cycle through applications with Command-Tab to see if anything requires your attention.
Weird, I had it small screen, opened activity monitor, about a minute after W3 freezing I took a pic of the screen, and then it unfroze and is now downloading a patch. Very weird.
You must have missed what I wrote down the bottom. It is now working for some reason . I moved it back to where it originally was and it still worked. No idea what happened, but at least it's working.