i haven't really looked into this, but while sanity checking something to reply to a solr-user question, i just noticed that using the example setup, this URL...
http://localhost:8983/solr/ ..currently generates a 400 error page saying "Missing required parameter: q" ... it use to generate a very plain page linking to hte admin screen. I assume hte Dispatch filter is being a little over greedy in it's attempt to respond to requests? -Hoss
