Dell had a tough second quarter with revenues down 8% as "deterioration," proved worse than expected. Revenues were $14.5 billion compared to $15.7 billion in the same quarter last year. Third quarter revenues are expected to be down an additional 2 to 5%.Dell's poor results show how quickly the market is shifting to a post-PC economy. Reflecting that was the contrasting increase in the company's server business. Dell reported that its enterprise solutions and services revenue grew 6% to $4.9 billion. That revenue made up 34% of Dell’s consolidated revenue and more than 50% of its margin. Dell said that business is approaching a $20 billion annual run rate.Server and networking revenue grew 14 percent. read more..