In principle there is a workaround for this problem.
- Decompile the glang.chm file (using HTML Help Workshop).
- In helpserver.js change the loopback IP addresses from 127.1.0.1 to 127.0.0.1 and them recompile.
- Repeat for other CHM files where the placing and find VI problem exists.
This enables the “Place on the block diagram” and “Find on the Functions palette” buttons, but you lose the scrollbars from the table of VI/function parameters etc. Obviously there are no guarantees with this kind of approach and I accept no liabilities, but applying this hack to glang.chm worked for me.