Sir i cant access yahoo on my system can you provide me any suggestion

I have 3 suggestions: 1. Go to Messenger>Connection Preferences> then, you choose either connection directly to the internet or connect via a proxy server, and then choose type of internet connection>OK>Sign in again... let's try this, may be you can solve this problem. OR 2. Check your internet connection, may be your connection encountered problems...or i think better you should check your firewall settings. I think you should check your firewall settings. If you use Personal Firewall, make sure it allows your connection to receiving incoming connections and allows you to sign in your yahoo messenger, check it out, may be it blocked your yahoo messenger from sign in. OR 3. Open your Internet Explorer>Go to File>Then, 'uncheck Work Offline', make sure your Internet connection is not working offline. Then, close Internet Explorer, try to sign in your yahoo messenger again. I hope these can be helpful! Try these! Good Luck! Hope it was helpful!