Linux Mint Forums

Sorry, but I can't find an answer not even for one of my questions. And I have many. I was working with Ubuntu for about 7 years. Without problems. Until they came up with this damned 12.04 LTS and its Unity desktop. Somebody on the net recommended LinuxMint. I downloaded it from the LinuxMint website (Lund University) twice and both ISO version (LinuxMint 14, Nadia cinnamon) had damaged packages. Therefore I can't install mint codecs (when I click on the welcome page then nothing is coming up. Well: this is question 1 + 2: how to remove damaged packages and to get mint codecs. Third question: With Ubuntu Skype was always running immediately and without problems. Not so with Linux Mint. I can hear but my partner can't hear me. In the options are no options - everything is 'pulse' - you can't change nothing. Question 4: When I want to open my homepage 'Einar' then I get this information (see attachment).
Then I have a question regarding this Forum that's called Linux Mint Forum. But plenty of questions and answers focus on Ubuntu. I know that Mint has taken "the best from Ubuntu" but does it mean that people can discuss Ubuntu questions on this page? I left behind Ubuntu for all the troubles and now I'm again confronted with Ubuntu. Uff.

Beg your pardon but I wrote already so many letters/Mails and didn't get an answer that I'm quite desolated.
Best regards
Einar

You seem to have downloaded Linux Mint from the wrong source. Here is the correct place to get the ISO:

http://www.linuxmint.com/download.php

All the problems you mentioned are related to the missing codecs.

Linux Mint has not taken anything from Ubuntu, it merely shares some of Ubuntu's repositories.

The only word I could identify on your image is "dolphin". That is one of the file manager options for KDE. Did you want Linux Mint with KDE, Gnome, Cinnamon or MATE?