Shoutbox

HI!
When I open my chat log, and click a log file, it opens in my web browser instead of the built-in window. How can I fix this?
I also tried to associate all .html files with chat log viewer, but northing happens.. This problem occurs when i have firefox as well when i have IE. Pllss help me I am using Windows 7. And no, for me the .txt log file is not an option, i really don't like that.

Thanks for your understanding.

Tristan