Chat Window Won't Appear Untill I Press Enter or /

[bongloads]

I've managed to accidentally make my chat window disappear when i log on, so i don't get any text whatsoever. I can hear people sending me tells, but i don't have any text. I have to press Enter, / , or R(eply) to get my chat back up, but then it doesn't show me anything that I've missed.