Full disclosure: I always take the long view with tech companies, especially the big ones. Start ups can have the wheels fall off over a 10% drop. Big companies like MS, this is virtually nothing. I mean, look at Best Buy. Their profits were down over 80% last year and they're still out there hammering away.
Here's that BBY article I was alluding to: http://www.webpronews.com/best-buy-earnings-net-income-down-...
"Hubert Joly is the CEO now, coming in as the company reports a 90% profit drop thanks to less-than-stellar sales, and restructuring expenses."