Were you not in the office yesterday?

The title of this post was the question I have received from some of my friends yesterday through email. They also said they were not able to see me online in Google Talk! 

I don't know what happened exactly...! Because I have logged in to Google Talk as usual, but i dont know the reason why my status was shown as 'Not Available' in Google Talk...! 

Anyhow I normally use to be online whenever I am at my desk (in the id jvpandian) ..! So you can ping me whenever you want to chat with me...!

Then how about your yesterday..? Were you in the office...? I guess you were not!!