I have the exact same problems. Me and my cousin are sharing a folder with some excel/word files etc. And every time i open a file, edit and save i get this message. He does too.
We have to restart the program every time we save a file.
We used version 2.3.8 before this and it worked great. Anyway we can access a previous version while this bug is fixed? It's driving us crazy and we are looking for alternatives now. Any suggestions?
I found this site with older version, but im not sure if i trust this site: < munched >.com