I have 2 copies of Design Studio. One is on my laptop and the other on my desktop. The laptop one works great but the one on my desktop sometimes has an issue with the selection handles being MIA, ie gone, disappeared, no where to be found.
This makes working with your cut somewhat difficult to say the least. I didn't bother calling Provo, I just assumed the problem was a Vista 64 thing. I accepted the issue and dismissed it.
But then today while surfing the web, I find THIS and wahlah, my problem is solved. The answer: Press the ALT key! Just like you use the ALT key to make the handles disappear, it will also make them reappear.