Hmm.. I really can't see *what* you are going and how you manage to crash C2. Those zoom controls at the toolbar are not even active until you open some project..
(edit)
Ah.. After checking the second picture (first one seems non.existing) you have indeed opened a project, even though you didn't mention doing so. Unfortunately I have to say that this crash is not anything I can make to happen.
Which version of the Radeon GFX driver you are using. May well be that your's a abit buggy and the C2 happens to stumble on that? I have W7-64bit system with HD7800 and 13.251 drivers and I have seen some nasty flickering on zooming, but never seen C2 to crash on it.
And IMHO if something as important than this were 100% broken on Construct, I'd be sure there would be SH***storm all over the forum. So, I doubt this is quite localized phenomena.