That's how I play UO from time to time since yesterday. It doesn't seem like typical lag, the thing is I went to PvP with another guildmate today and he got it as well, at the same time I did. So did my girl sitting next to me and she wasn't with us. Same moment. That guildmate is in the UK, not living close to us. So it starts and lasts for a minute or two, then goes away... Then at a random time it starts again. Others seem to experience this as well. That's in Europa by the way.