I recall reading on these forums about a factory modification has been carried out on the newer Marantz SR4300 AV receivers to rectify a number of issues. A green sticker is visible on the rear of the device (and on the box??) if the mod has been carried out. Im currently waiting on my local Richer Sounds contacting me to let me know that they have just got more of these receivers into stock. Richer are selling them for £199, and I was just wondering whether or not the reason they are selling for so cheap at Richer is because they are the unmodified versions? Should I request to check the receiver before I buy it or will there definitely be a green sticker on the box? What problems do the modification actually resolve?