When your workflow for years has involved frequent use of ALT-TAB for just about everything (going between folders, apps like Photoshop or Illustrator, pulling up a reference image or two in IE, and whatever else), the tabs are a huge nuisance.

Plus they're redundant, XP's bar already categorizes things when it starts getting full. I used Firefox for a month and hated it. Maybe I'm a loser for it, but I'm happy to stick with Microsoft for just about everything. So, I'm hoping IE7 has an easy way to turn it off so I don't get mired with what I see as a horrible flaw and an unacceptable break in workflow.