Shares of information technology software maker SolarWinds (SWI) have swooned ahead of its Q3 earnings report, slated for release before the open on Thursday. The Austin, Texas-based company's stock has fallen 17% since Sept. 17 amid the sell-off in many tech stocks, hurt by weak Q3 earnings or sales from the likes of Google (GOOG) and Intel (INTC). Shares were up a fraction in early trading Tuesday and are still up more than 75% in 2012. After