http://support.invisionfree.com/index.php?...0&#entry5160916
Hopefully this means the glitches go away.

We have scheduled a large hardware upgrade to server 3 for this evening. The timeframe for this upgrade to begin is 1-3 AM EST.
We expect the transfer to the new server to take between 2 and 4 hours. You will be unable to reach your board during the transfer.... The upgrade will improve performance and uptime for server 3. In addition, it will give us the setup needed to offer new features in the future. All other servers will be upgraded at later dates....
Hopefully this means the glitches go away.