I just installed Office 2013 Professional (alongside 2010 and 2007) on my laptop at the weekend. However, it kept crashing and giving me ‘black’ windows. It turns out that, by default, Word uses hardware graphics acceleration, and I guess it wasn’t playing nice with the Radeon chip on my PC. The solution is easy, and so far seems to work. In any Office 2013 application, go to File > Options > Advanced, and check ‘Disable hardware graphics acceleration.’ I’ll update this post from time to time, just to confirm that this solution was the correct solution!