Today I started up my Xbox 360 (It's an older model) and it asked me to download the latest system update to remain signed into LIVE. I started the download, but when it got to the very end it suddenly caused my 360 to display the E66 error message. I then turned the console off and then back on again, at which point the console worked fine until I decided to try re-downloading the System update.
I remember reading in a magazine that this is caused by an update from Microsoft which removes the obsolute anti-piracy measures from disks, allowing them to store an additional GB of data. I also recall reading that Microsoft were offering to "Replace" these consoles with the new 250GB Elite model as any Xbox's displaying the error could not be fixed.
I was just wondering if anyone knew whether this was true, I've seen other people saying they have the same issue, so I'm sure it's not just my console.
Thanks in advance