I have been experiencing BSOD on a WinXP pro SP3 machine. Started with AIS 5.8. I uninstalled ver 5.8 and installed 6.0 and currently up to 6.1. I had several BSOD until upgrading and updating to 6.1, and now its less frequent. The machine has had Norton and McAfee at various times. I removed each of those products through the uninstaller and then the removal tools provided by the respective companies before installing AVAST! It has also had Ad aware and malwarebytes. I have uploaded a mini-dump to the ftp site. The machine is one of several Dell clones i support. This seems to only plague one machine. Hopefully someone will have a look at the file and reply to me.