Anyone else having problems with Microsoft Word crashing on Surface?

I've been using my Microsoft Surface for work, and have all of my documents on skydrive so that I can edit them from any computer. However, I have been editing my Word documents from my Surface, and it must have crashed 6 times where Word would become unresponsive and I would have to restart it and lose some of the work I did. This is very frustrating! Anyone else have this issue? Any way to fix it? Thanks!