Jon Stewart did a hilarious follow up Tuesday night to Bill Gates' Monday appearance on "The Daily Show" to tout Windows Vista.

"If you watched our program last night, our guest was Microsoft Chairman Bill Gates and I don't know if you noticed, but he left in a bit of a hurry," Stewart said.

Then he rolled the tape from Monday night:

Stewart: "Thank you very much for joining us. We really do appreciate it."

Gates, shaking hands with Stewart and standing up to go: "Great to be here."

Stewart, as Gates walks off stage: "Bill Gates, Windows Vista on sale -- uh, he's leaving! He can't just leave!"

During Tuesday's show, Stewart explained what really happened: "What's interesting is, that is the cleaned-up version that we did for television. Here is what actually happened in the studio."

He rolled the same footage of Gates' exit Monday, and just as Gates is walking away, an Internet Explorer dialog box pops up on the screen and the tape stops. Here's what the box says:

"Bill Gates has encountered a problem and needs to leave. We are sorry for the inconvenience. If you were in the middle of something, the information you were working on might be lost. Please tell Microsoft about this problem. We have created an error report that you can send to help us improve Bill Gates. We will treat this report as confidential and anonymous. To see what data this report contains, click here."

At the bottom of the dialog box, there are three choices: Debug; Send error report to wife; Don't send.

You can view the brief segment here, after enduring an advertisement.