I just got a nook color, and after rooting it, chose to use CM7. Everything looks like it loaded correctly, the OS and all my apps work. I can reboot the NC, or turn it off for short amounts of time, and it will load correctly the next time it is turned on. However, if I leave the device of for a length of time (more than a few hours) it will not boot. It gets to the "Touch the future of reading" page, which is normally only there for a split second, and just hangs. It does not get to the small android message on the side, or load the android icon like it normally does. Whats bizarre is that if I insert my SD card with CWR on it, all I need to do is either "clear the cache partition" (which formats the cache), or just format the cache itself. Once I reboot from within CWR, it takes an extra minute to boot up, but then works fine. Again, I can remove the memory card, and reboot or restart from within CM7 and it works fine, but if its off for a few hours I get the same issue. I've tried resetting to a stock system, and reinstalling CM7 twice so far, but it doesn't seem to make a difference. I'm using the most recent release for CWR, and google apps, but I'm using the CM7.0.2 rather than 703 as I had issues getting the marketplace to work with 703 (a somewhat common problem with the NC IIRC). I've looked around for similar issues but most of the problems seem to be a failure to get it up and running at all, rather than the odd issue I'm having. Is there something else that I should be doing differently to get the cache to remain in the correct format? Different settings that I should use when I reinstall? A different version that will not have this issue? Should I just roll back to a rooted stock rom? Use setCPU and just leave it on as much as possible? Any help or advice would be greatly appreciated.