Heya Terdog,
Does your friend have one or more toolbars installed?
Personally, I am a toolbar hater and would suggest uninstalling any and all browser toolbars (if they have any). Then try running CCleaner's temp file and registry cleaner.
If after doing that, there are still problems, reinstalling the browser may help.
When that error comes up, does the internet browser close? Or do other programs close? If it is just the browser itself, following those steps should do the trick.
Let me know if that helps
