Hi, we currently have more than 900 PCs with NOD 4.2 and we are migrating to Endpoint Security 5.0.2126.0. I encountered the following issues with this client: *On 5% of our PCs this client slow the pcs to a crawl when booting up and locks the taskbar for a really long time (SYSTEM process on task manager shows high CPU usage). I cant find out what is making this problem. NOD 4.2 do not reproduce this problem. The same exact issue happened to us before and 4.0.417 fixed it, now its happening again: From NOD CHANGELOG: March 31, 2009 - 4.0.417 Fixed several issues in firewall module: Detection for Conficker added Fixed detection of TCP stream Fixed detection of binary rules in ipv6 Fixed BSOD on Vista caused by entering mapped drives * Removed potencial deadlock during Windows log on process* Fixed detection for DNS cache poisoning attack Fixes and changes in ICMP filtering Fixed scanning of ARP Fixed issue with disconnecting of routers and data transfer cards from internet *When activating WEB CONTROL INTEGRATION, web access turns unsuable, really slow and cant reach many web pages. We have to get this functioning to preven users from entering many forbidden pages (porn,drugs for example). If it gets disabled, the PC surfs fine (with no restrictions). When enabling its ultra slow and prevents porn pages. Any help?