I installed Filr3.0 desktop application on windows 7 64 bit and it's not working.
After installation, I could login to filr but there were no any filr folders synchronised to my desktop.
Moreover, it seems that filr desktop app tried to synchronise with server and it caused my desktop to hang.
So, I had to log out from filr app and there were no problem but the problem exists after logon filr app.

No problem with windows 8.1 and 10, MAC OS