Are you using Windows XP? If so just click on start and choose the option "Set program access and defaults" - it should be in the right hand (light blue) pane.

Click on the "custom" button and you should be able to set your default web browser.

> Do you know if it is possible to have 2 browsers co-existing?

It should be in theory, although one of them will be set as default.

>If so, which are the best ones, much gratitude,
ltbh

I don't know to be honest. I'm one of those saddos who can't be bothered to switch from Internet Explorer. One feature I miss (from my linux days) is the ability to have "tabs" for multiple windows and the ability to shut down a browser and have it remember those tabs and open them up next time you start. That really was a great feature.

If you find a nice free browser out there do let me know.