Thanks!
I will keep that in mind to try if I have more issues. I had to give up for the nght and start again in the morning with a fresh mind. I thought it was very non-macish for it to be so hard just to reinstall an internet plugin that was crashing.
NetFlix and Microsoft instructions seemed to indicate just deleting the silverlight* files in '/Library/Internet Plug-Ins' then reinstall. Others said install a third party app called EasyFind to search for hidden files and delete everything with SilverLight in the name which I did, no go since it must have missed some. I looked through the hidden user Library folders and couldn't find anything.
Finally found the script at the other link I posted:
rm -rf /Library/Internet\ Plug-Ins/Silverlight.plugin
rm -rf /Library/Receipts/Silverlight*.pkg
rm -rf ~/Library/Application\ Support/Microsoft/Silverlight
This finally worked consistently for me.
I think I was overlooking the files in /Library/Receipts I think. The thing that kept bugging me was although I was using the one directed from Netflix and Microsoft, the install kept saying a newer version was installed, even though it was a letfover file somewhere from an older version, since i was trying to install the latest version...