My xbox came with a 20gb harddrive. I have Verizon fIOS. So, on my xbox, I can't download anything. It says I have 12 GB free but when I go into my HDD on xbox, it says I am using 1 GB in my Games and the rest of the sections are very small. When I bought a Fallout 3 add-on (broken steel), it woudn't let me download it! My brothers tell me that they can download things just fine on their Xbox. They are running on the same router, and 20 gb harddrives. So, I went to walmart, and bought another add on, which is Operation Anchorage and The Pit. I installed it succesfully but my Fallout 3 no longer worked. After playing it for a while, it kept freezing on me and I had to restart my xbox and it also said "This disc is unreadable." If it wasn't freezing or giving me errors about the disc being unreadable, it was really slow. When I deleted this add-on out of my HDD, Fallout 3 worked like it usually did. My brother called Xbox and the guy said that the add-on shouldn't even be in Walmart, lol, I don't think my brother or the guy that was helping understood eachother. What can fix this? I've called about ALOT of times regarding the download issues, none of there advice worked. I've been thinking about buying a 60GB harddrive. Please help, if you don't understand this topic, please, ask questions! 24 hours and no response WOW, 3 days and yet no help.