what is doing this?? i do not even touch a link anymore, i'm sitting in a chat room, and suddenly my font does this:

Gus1234U: that is the least offensive cartoon, i think
» [c=#a31f6e" face="Verdana, Arial, Helvetica, sans-serif]not the best way to get support, is it ? [/c]
» [c=#a31f6e" face="Verdana, Arial, Helvetica, sans-serif]oh ---[/c]

there is nothing i can do to fix it. if i hit back space or esc, my font typing just becomes gigantic, tho it looks good in the room, i can only see a few words~!

i have cleared my browser (chrome), and deleted cookies, and set Java....
HELP~!