You could say that ... We use NOD32 on our customer's computers. Until recently, this was out primary antivirus solution. (we are talking a few thousand PC's, here). Since the 10.1.219, just about every PC running windows 7 X64 has been in with this issue. (windows unresponsive), unworkably slow. Solution is simple: boot in safe mode with networking, remove Nod32 using the start menu - eset -uninstall (in control panel, it won't uninstall), download the NOD32 manual uninstaller and clean up the residual file(s). Reboot, reinstall, and porblem sorted...
Good luck,
Bruno.