Hi, Those here who also monitor www.dslreports.com might have come across a series of posts by me sometime last year. For reference, here's the URL: http://www.dslreports.com/forum/remark,10575253 Here's a link to a screen capture of the Error popup: Kerio Error In any case, I've just uninstalled and re-installed Kerio 2.1.5 which has not helped to resolve the problem in any way. I've noticed that visiting some web forums would invariably cause such a crash. There seems to be something in the way these web sites are written which would trigger Kerio to shut down. To date, I've tried using various browsers but the bug seems to be browser-independent. I would hate to have to switch from Kerio 2 as it is to me the perfect PFW in all other aspects. However, this bug is quickly making my surfing impossible. The DSLreports forum have not been able to come up with any solutions. I hope someone here might have better luck. Please help if you can.