I am in luck Dominique!
I read somewhere that the absense of Php Curl might be the reason..so I had it installed!
First of all do this: sudo apt-get update
Then do this: apt-get install curl libcurl3 libcurl3-dev php5-curl
Hope it works for you too!
I am using Ubuntu 12. 04 by the way...or maybe before you start you can google how to install Php Curl for your distro if it is different.