Do you still get that cold boot problem if you change the default OS to OS X or alt-boot into either X or MorphOS?

I've had a number of boot issues on my pc that may have been due to a combination of cold weather, drive integrity and bios settings. I had forgotten setting the hard drive as the first boot device and it seems that a truly cold start (both cold weather and power-on cold start - sorry for the lame pun!) prevented it from being ready for initial bios reads and for resume from suspend. Setting it back in the queue behind removable and cd/dvd devices seems to have at least improved initial boot reliability.