IE 4.0 UI tweaks will include return of double-clicking

The most recent change to the test version of Internet Explorer 4.0 - which will contain features like push channels and will be more tightly integrated with the operating system - is the return to a "two-click" system of navigating with a mouse.

The company had developed the browser so that it took only one mouse click to navigate through the desktop system, but most users are more familiar with the two-click system and asked Microsoft to change it back. Users who like the one-click system will be able to change it.

Through its testing, the company also found that only 40 percent of users have an active interest in the push technology, touted as a major feature of the new browser. Push delivers information to a users' computer, saving them from having to actively search for it. Microsoft officials said they expect interest in the technology to grow as it becomes more mainstream.

The software giant has spent thousands of hours testing the new Web browser, even more than it spent on the Windows 95 release two years ago.

"We're spending time during the development of the product to take feedback," Kevin Unangst, product manager for IE, said.

"It means we're listening to the customer." In the past, Microsoft has been criticized for releasing buggy products that are not quite ready for release, requiring the company to post fixes and upgrades for impatient users. But the company is investing more in testing - both at its lab and through watching corporate users