chat problems with vista?

[Dudeboy]

well whenver i type on CO.. my chat like always messes up and acts weird. sometimes theirs random symbols and numbers after i type and sometimes it digs up what i said before and sticks it in the line.

for example if i said: hey guys whats up?

then i said: yea yea im doing good, it might come out like this : "yea yea im doing good ats up?"

some other people i know have had this problem with vista but others dont have any problem at all. im guesing tis the way vista was configured or something but the last patch has made my chat even worse. so if anyone can solve the problem it'll be greatly appreciated