YLD Chat problems... Help please

Hi,
I tried to get in on the YLD chat yesterday, but don't know what happened.
This was my first time on a GeoCity chat.
My screen was black, and I could only read one person. Through context I could tell others were writing too, but I couldn't see them.
The black screen and the bright blue letters were not a great help.
I went to "help" a couple of times, but it required a user id etc, so I got out of there.
Kitty, Eva said you may have encountered this before with Macs. Any advice?
Thanks!
Lucinda la luz