I too had seen this. Following is the answer from the server people.
So, friends please either wait for few days or take a backup of your new posts.
Hello,
We moved your account to a new server last night and what happened is that there is always a period of time where some users will continue to reach the old server while others will reach the new server. There is no way to prevent such a problem.
If there is too many posts missing we can re-import the database from the old server but you will likely lose the new posts. When moving large databases there just isn't anyway around this from happening due to DNS caching issues.