about the yieldmanager~ help!

Hi Users,

can any help me out the problem:
when i access yahoo.com.tw get in to the NEWS then the avast poped up and say yieldmanager.com…and i find from google saying to use run and type ‘‘regeit’’ and search for yield and delete the files called 000, 001 and 002…but i don’t really seem to understand??? can anyone help me.urgent

Regards
Jwgod

The problem is just solved.
Just update avast and it should be ok