Best of the blogs: If you live in the 21st century, you stopped using Internet Explorer some time ago, writes Matt Asay in Open Sources. “It’s ugly, invites unwanted malware, and has been behind the innovation curve for years. All of which makes it the more frustrating that Mozilla has been kept at bay in the enterprise. Mitchell Baker, head of Mozilla, was quoted recently with some explanation of this silliness: “Enterprises have intranets that only work with (Microsoft’s) IE,” Baker said. “We can’t fix their intranet.”Columnists’ corner: David L. Margulius gives some glimpses of how some techies de-stress in Tech jobs take stress to whole new level “[According] to a recent Wall Street Journal article, some of them participate in a worldwide online simulation of — of all things — the air traffic control system.” Sound calming to you? Talk back to us below.The news beat: Security researchers have discovered a serious flaw in Symantec’s enterprise antivirus software; Microsoft confirms Ultimate Office; Vista’s rating tool is retooled following criticism from hardware makers; and Google has struck a deal with the Dell to factory-install Google desktop, toolbar, search engine and homepage on consumer and SMB desktops and notebooks worldwide. Buh-bye Microsoft, Dell says in one fell swoop. Technology Industry