I bought a Creative/Cambridge Soundworks Megaworks 510D speaker system for my computer half a year ago and just the other day, the fuse in the sub blew. I replaced it but it blew again 15-20 minutes later. A worker at a nearby electronics store said that their maybe a short circuit. If this is the case where can I get it repaired and how much would it cost? If this isn't the case, what should I do? I don't know anything about the workings of subwoofers so it would help if you cut down on some jargon. Could anyone tell me what 2.5AH means when talking about fuses?