thanks for the feedback
I did update to 418 and so far all seem Ok
as far as not understanding where the thread was going … I think it was simple and ONE many others I speak to find themselves in the situation with updates
do you update JUST because they put one out there (not avast but many others)
but in this case it did include avast I saved myself what seem many problems by waiting and not putting 416 on my PC
I am sure many other wish they had - I do try to keep a backup download of the installer - I just went through this with the new crap Zone alarm 5.0 update
totally play Havoc on my PC as well as 80% of their forum so I am back to the 4.0 version and all is well again

I tend to side with caution as is recommended by most on the list - download a new update no matter which after checking the forums etc to make sure all is well 

 I guess "to each their own" 

thank again Techie

Rick