HTML tag buttons don't "work" anymore

Hi all.

I have a strange issue that i can't seem to figure out.

Since about three days or so, the HTML tag buttons (or whatever they are called) don't work anymore.

With HTML tag buttons i mean the buttons above the area where you enter your text when creating a post. Buttons like B, I and U etc with which you can format the text and create hyperlinks and such things. Also the smilies to the right of this text area don't work.

If i hover over them the pop-up appears as it is supposed to (like "Nerd" ... lol), but when i click on them nothing happens.

I haven't installed any specific software the last few days and just can't seem to figure out what is causing this.

Any ideas?

Thanks! :insert smiley face here:

Well, for some unknown reason and without me installing or removing any software or whatever it suddenly works again...

Weird. Really weird...