Restrict Text Formatting

[Loony1973]

hi all. I had a search and couldn't find the answer to this one - but apologies in advance if it's already been answered.

I'd like to restrict certain members from being able to use the [size] [color] and [alignment] formatting tools when making a post. We have several members who think its funny to overuse this to wind up others.

I thought about creating a new usergroup called registered2 for example, and sending the naughty children to this group.

How could I prevent this group from then being able to use formatting tools? If possible I'd like them to still have smileys.

Thanks in advance to anyone who can help - I'm not the brightest button in the tin, so clear and straightforward answers would be most welcome!!