Hi John. Don't get hung up about your PR. It's all about traffic so check your logs to see whether the traffic trend is upwards. Also it's not about the number of blog entries you make but the quality of them. In other words you have to have interesting content that people want to read. If you have this then you will gain new incoming links and your traffic will increase. It could be months before the next PR update, so in the meantime keep adding good content.