I mentioned the locking up a few pages back. Since then i've found that undervolting using the power user kernel causes the problem. It may even be just some difference in the kernel itself that causes the problem, regardless of voltage settings. All i know is that i installed and uninstalled the power kernel twice and always had a lock up within an hour with modrana running with the kernel installed, and have experienced only one or no lock ups (can't remember for one case) with vanilla kernel.

I tried increasing all voltage settings somewhat and still had the problem, so for now i've just reverted to vanilla to test without that extra variable.

It's unfortunate because the ideal settings really helped battery life.