I guess its fortunate that with how many I've used I've not encountered it.
If we are both talking about the Z68 UD3H, then you are either lucky, or I am one of the very unlucky few. People tend to speak out when things go bad, but keep quiet when they work. Personally, I got this board on sale for around $100, but for a board that's still listed for $170, I expected it to last longer without issues. There are things I love about it, but then it reminds me almost every time I reboot how much I hate it.
From what I understand though, it's not so much a Gigabyte problem, as it is a Z68 problem. Gigabyte's just happened to be one of the boards that had issues more frequently.
Sorry, I am talking about the Z77 UD3H. I have very limited hands on experience with the Z68 Platform.
Ah my mistake then. I wasn't aware that there was a Z77 version. That explains our difference in our experiences. :P