Forum Feedback is for questions or problems about VB Forums. Please tell me what language you are using and I'll move this thread to the correct forum.
It's a little counter-intuitive if you're used to a word processor, but you have to type the text out first, then select it and click the format option you want.
If you are using Internet Explorer you should take a look at the A valuable forum tool link in my signature. It will make bolding and all the other formatting changes much easier.