I have a 2007 Web based form that is published to a 2007 library. It has a people picker field that is connected to a context file. No other web services are in the data connection. Recently, the form started giving out an error when opened by users. The details say log id: 5566. They can click continue and fill out the form. But it is hit or miss if it comes through successfully upon submission. I can open it just fine, no issues. Thoughts?