We are trying the same thing…
I have the same problem, instead of everyone having their own blog the main blog will act as a multi author blog. But on the profile page I want to see the posts from that user and also, the posts she has commented.
Anyone know how to do this? Help would be very appreciated.
I have bin looking at that page and it seems simple, but I still don’t understand what to do. Can you be more specific?
Thanks for the help, and please forgive me for my stupid questions 
Hej Patrik – are you building your own theme for this (writing PHP, HTML templates, etc.)?
You’ll have to modify the templates for your profile page (e.g. members/single/home.php in the default theme) to include your custom activity loop.
You can access the current user_id within that page, and pass it to your custom loop.
I think I understand it better now! Thanks a lot, will give it a try when I get some time 