I am very surprised with this, the only program that causes my to have a BSOD. The program when the BSOD occurs is OMAN, the Nod office scanner. I have done a clean install with Vista X64 Sp2, running the latest version of Nod64. I had bought 2 years and they come to expire in July. So I purchased Avira and it has worked fine. Please let me know if the developers have seen this issue.