Can't generate system health report + problem device

Hello,

I have two problems I need assistance with.

FIRST PROBLEM

1) I suddenly can't seem to generate a system health report with Vista. I
keep getting "an error occured while attempting to generate the report".
Before it worked now it does not. I always do a system health report almost
everyday. (I'm obsessed about the well being of my PC). I don't know what
triggered it, but here are some possible reasons I can think of:

A) I recently uninstalled my Mcafee trial software and then installed CA
Internet Security. I then received a series of Blue Screens. I quickly
uninstalled CA Internet Security and used Zone Alarm Free Firewall and AVG
antivirus. The operating system seems to be stable now (I haven't got a Blue
Screen since).

B) On July 25, 2007, I installed a recent update to Windows Vista. The
update is KB929547. (http://support.microsoft.com/Default.aspx?kbid=929547).
Could this have something to do with it?

Some things I did to attempt fixing this problem myself include doing a
start up repair (using the F8 key before Windows loads). No problems found. I
did a Windows Memory test while I was there in the boot options. No problems
detected. I checked the hard drive for errors. No bad files and only a few
reparsed records.

The problem still exists.

===============================================
SECOND PROBLEM

2) I was doing some snooping in the "System Information" section. Under
"Components" and then "Problem Devices", there appears this:

Device: 6TO4
PNP Device ID: ROOT\*6TO4MP\0000
Error Code: This device cannot start.