Bold code not working

My forum was not in function for a few days, because i have made a re-design. Today i have published it again, and i have some problem... When i bold my text in post, it actually won't bold. There is a code on text, but when i send my post it isn't bold. I have noticed that none of the texts from the posts, which i previously have bolded, in fact are no longer bold. It's really weird, really don't know what's the problem... Please help me.

is that the bbcode you are useing

Code:

[b]bold[/b]

bold

kirk wrote:is that the bbcode you are useing

Code:

[b]bold[/b]

bold

I know that... But looks like the error was in my browser, i re-installed it and now is everything back to normal.
Sorry for opening new thread, it was my mistake.