"Your system has just recovered from a fatal error send to MS etc." I have yet to receive a response which tells me what has happened"
You won't receive a response. That isn't the point of sending info to MS. It's simply to give them info about problems so that they can fix those problems in future software releases.
Try a Windows repair:
Sometimes the system files (those required to run Windows properly) can become corrupted. Here's how to run a check on your system files:
• Click Start; Run.
• In the Run box, type cmd.exe to open the command prompt window.
• At the prompt, type sfc.exe /scannow
• Press ENTER. If Windows finds problems with the system files, you will be prompted to insert your Windows XP installation CD to restore the files.
If no problems are found and the scan finishes, type exit and press ENTER.