Hi all again! After having a dump anaylized by a member here, i applied the Microsoft Hotfix. But today out of nowhere, i get another BSOD with a different problem. I attaching here the screenshot of the BSOD and the minidump.dmp, i would be really gratefull if somenone could analyze it for me and try to discover wich file is the one with the problem. The system is a Windows 2003 server x86 runnning CITRIX Presentation Server 4.5. Thanks you all!