there's a / command for that if you mean you see the chat on the ppl's head but u don't see it in the chat box ...
try:
/notalkmsg or /nm - general chats will not be shown in your chatbox only whispers, party chat, gm announcement and guild chats are allowed.
/notalkmsg2 or /nm2 – same function as /notalkmsg (/nm) but this time even guild chat is blocked. [Currently only in pRO Sakray]
Otherwise, maybe F11 / F12 would help. If relog doesn't do it.
