SEATTLE (AP) - Microsoft Corp. has warned that its Internet Explorer software contains six flaws, some of which could give hackers access to - and even potentially change - personal information about computer users. The Redmond company, which called the severity of some of the flaws "critical," advised users of Explorer versions 5.01, 5.5 and 6.0 to download a patch for the software from the Microsoft Web site at www.microsoft.com/security. The security bulletin issued late Wednesday marks the fourth time this year that Microsoft has issued a fix for Explorer. >{? Among other things, the flaws could allow hackers to...