i singned in google but my chat window is desabeled

i found a problem with my Google account that "i can't use my gtalk gadget through my account"
how i solve the problem?
i searched entire web i find this may be due to some cookies .
i thought i can solve this by deleting the cookies by using some cleaners like ccleaner

1. must download/use any cleaner i suggest ccleaner it free to downlaod
2. close ur webbrowser..1 sec...(before read this completely.ok)
3. install cleaner.
4. then claen ur system use it.ok
5. make sure cookies are deleted.ok

then enjoy chat via google.