Sorting of index entries in Ventura 10 on Windows 10

 Just returned to my old friend Ventura (1988-2007) and have v10 working on Windows 10. But index is sorted wrong (caps). I know I can go through them one at a time and use Ventura features to get collation right. But that is very laborious. I seem to recall seeing a comment that it was a Windows 10 problem and there was a fix. But cannot remember where I saw that comment. Can someone point me in the right direction? Thanks