As Colleague Ex_Brit stated..." The main issue has been resolved". So I am taking the liberty of marking this thread as 'Assumed answered'. Should there be any further issues arise, please feel free to bring it to our attention.
All the Best,
I think things are working alright now.
I downloaded the patch, and this so far has cured the freezing of the scans.
I got on to McAfee about the MVT's showing of RTS not working: the technician took over my machine and ran a few things from his end; he said that RTS was working fine and, when I asked about the MVT message, he told me to ignore it.
Thanks for all the help from forum members here.