For the second straight quarter, North Carolina-based Wachovia Corp. (WB) revised a quarterly loss and said it lost more money than originally estimated; in this case, the revision was tied to a possible legal settlement of auction-rate-securities claims with state and federal regulators, according to a late Monday filing with the Securities and Exchange Commission. The bank is now reporting a Q2 loss of $9.11 billion to cover costs of a possible $500 million settlement, or a $4.31 per share loss, up from the $8.86 billion loss, or $4.20 per share, originally reported when the bank first released its second quarter results on July 22. In the first quarter, Wachovia had increased its reported loss to $708 million from an original $393 million because of a write-down tied to life insurance policies. The ongoing woes at Wachovia underscore a widespread set of problems for the bank that go well beyond its problematic exposure to the U.S. housing market — although that's also a key source of pain, as well.