My Logos 4 has started crashing every time on start up. It was working fine yesterday, but today it has been crashing. I rebooted by restarting and also by turning the computer off and then restarting. No difference. I have a Dell Inspiron 9300 with 2GB of memory. I am running WIndows XP Professional SP-3. I'm using Kaspersky AV and no other programs seem to be affected. I have the latest Logos updates. Logos 3 is working fine. Thank you for any help you can give.