I have a lifetime Series 3 (OLED) that started the dreaded reboot loop. I opened up the case and it indeed has a budging cap. Now, I had a spare 500GB WD drive that I put in it a few months ago. Before putting the S3 image on it and sticking it in the TiVo, I ran an extended test on it and all came back good. It has been working flawlessly for months until recently I have another Series 3 (OLED) that had this reboot issue a while back as well. While it had a bulging cap & I had it fixed by a local shop, this didn't fix its reboot problem. Rather, a totally new hard drive is what ultimately fixed it. While I will get the cap fixed either way on this other S3 as it can't hurt, I am just wondering if this bad cap can cause a hard drive to go bad over time. Or does one really have NOTHING to do with the other in terms of failure. I also realize that since this 500GB WD drive is not totally new, there is chance it could have just failed as well. Just curious on this.