Tech Firms Keep Riding Chinese Tiger Microsoft watched a software deal with China go bust less than two weeks into the contract. And Beijing is pushing its government IT officials to buy local. But China remains a vibrant market where tech firms have to stay in play. &lt;FONT face="verdana,MS Sans Serif,arial,helvetica" size="-2" color="#666666"&gt;&lt;B&gt;-washingtonpost.com&lt;/B&gt;&lt;/FONT&gt;