My email send attached emails contain viruses to my contacts?

my conatcts tell me always that they receive emails from my yahoo email , which contain viruses and i didn't send them , what should i do ?

My email send attached emails contain viruses to my contacts?house call

Run your anti virus checker and your spyware checker.

Empty out your temp files and your history.

Change your password after you have done all that.

If it is still happening, you may need to get another account.