Anyone have any hints for troubleshooting Z3950 searches? I've been using Koha's MARC search function for many months, and have retrieved MARC records for hundreds of books. Then, it suddenly quit working a couple of weeks ago. Everything else works - all the rest of Koha, my internet connection, etc. If I use Ethereal to monitor the LAN traffic, I can see my computer connecting to the Voyager server at Library of Congress, getting an acknowledgement, sending the ISBN number, and then getting a fairly short response. Then the whole sequence repeats, every five seconds or so, until I clear the search list. This happens even with ISBN's that have worked in the past. I've made no significant changes to the computer in this time frame, have rebooted numerous times, and even downloaded the latest version of Net::Z3950. I'm using Koha-1.2.3. Anyway, I guess my next approach is to try and understand the bits being sent/received during the Z3950 transaction, and see what my computer is being told by LOC. If anyone has any ideas for translating the protocol PDU's back into plain English, (or other troubleshooting hints), I'd appreciate hearing them.