Translation of Grundeinstellung

As I have already mentioned in my last email, it is a breakthrough, I have never been so successful. I have visited several Spanish schools and would like to discuss that by telephone with you.
Maybe we would need to say install our dictionary as a software? But I would say instead of install, use our dictionary as a software. So bottom line. If I use the singular form for newsletters and websites, I am on the safe side for both?
I have a lot of fun while learning. Which one do you like better, Spanish or German? Last year I learn approximately 18 months Spanish as a second language, but then we had to leave the course.