I did have a random shut down though, charged it over night after installing the rom & had a few texts in the morning when the phone was in my pocket. When I took it out the phone was completely dead? It was a clean install with a full wipe. I had just started work so was unable to make any logs or anything. Seems to be a one off & it's been behaving itself since.
Random, not seen that! Remember to use a kernel with the wakelock fix - eg Franco - for best battery life!