I think this has been a problem for quite a few people. I'd like to be sure of how to resolve it before I meddle.
I contacted Support on Friday, but haven't had a reply.
Here's the query I sent :
Hi, my site is WordPress, http://www.jameshamiltonphysicist.com
In 2009, when the site was built, the designer/hoster got greek characters to work.
Then recently the site was hacked and we had to rebuild. Now the greek characters don't work (after update, they display as "?" and other special characters).
My hoster says that it's really my responsibity to find a solution.
I've read various things on the WordPress site saying that some fonts may not support greek characters, but I have the same font now that I started with in 2009.
I'm prepared to make coding changes but don't want to meddle before I understand what the problem is.
Can anyone help ?
Also WordPress says that it's interested to hear about any security issues. I don't think the Support desk was interested - should I contact anyone else ?