Hello,
Thank you for quick response.
Profile Builder avatar field works when MediaPress is disabled. Maybe MediaPress deregister some script which is used in ProfileBuilder. I’m just guessing.
I send a ticket to PB support but I have not received a response so far.
I can send you on email a Profile Builder Hobbyist plugin version for testing this issue.
Here it links to a page with a specific Issue: http://hpapps.net/dev/buddypress/registracija/