I installed ubuntu 11.10 and started with the software center. At first no software had the install option so I chose "Use the source". But the download (whatever it was downloading...) was taking too long so I canceled them.
When I next moved onto the "Get software" page, the INSTALL buttons had somehow appeared in any softwares I searched for, but none of them installed on my system when I tried to do so. I keep getting this "Failed to download package. Check connection" error even when I am parally working on Firefox.