When designing a website or web tool one should make sure they design the site around how the users browsers are probably set up. For example, if design the site width around being 950px wide, and the user has their settings at 800×600 then your site will not fit on their screen. That is bad.
I know what I like mine to be and I generally just assume everyone else has theirs the same as mine. It’s not a good practice, so I’ll recommend a better one. Use the following information so you can atleat like your odds.
General browser stats:
The first one tells you the types of browsers in use. The second one tells you the display settings in use.