I've been having lots of problems with my monster cables over the last month or so. I saw in the monster cable debate thread that somebody said GC lets you take them back to where you bought them and they fix/replace them for free, since they have a lifetime warranty. Now, has anyone ever done this.... WITHOUT THE RECEIPT?!?! (dun dun dunnn!) Anyways, I have 4 cables, and i think I only have the receipt for one of them... and I bought most them at least three years ago. what do you think?