If you have trouble seeing other avatars rezz the right way, or they appear slowly, it may not be you. In the Grid Status Report, the Lab stated they will be performing maintenance today on "Agent Appearance Service."
We will be performing Scheduled Maintenance on our Agent Appearance Service on Thursday, April 28th, starting at 9:00 AM PDT. While this maintenance is in progress, avatars may fail to rez correctly and there could be other issues relating to avatar appearance. Please monitor this blog for updates.
How long it will take was not estimated.