I just tried several and the client has a new twist. Seconds after the reclaim process starts the entire screen goes black and the cpu indicator vanishes.
A few weeks ago, I was unable to attach an address to the tangle. I have tried on another computer (Windows10 instead of Windows 8.1) and it worked. Perhaps you could try on another machine.
Great suggestion! Worked on my Win7 box in less than a minute to get proof transaction confirmation!