Specs: G5 2x2 (have also had the same problem in 2x2.7) OWC SSD 240 GB 3G partitioned in half: one bootable to 10.5.8 the other bootable to 10.4.11 Second drive Hitachi 500 GB 7200 RPM Boot to 10.5.8 on the SSD Formatted the Hitachi drive to Apple Partition Map and set as Time machine drive. Time machine starts and goes fine until 19.45 GB (out of 45 GB to backup) then stalls. I've reformatted the Hitachi drive and started all over, but the same thing happens each time. I've tried this in a 2x2 and 2x2.7 G5 and same thing happens. Any ideas on what the issue is or how to solve this? I've let time machine run over night, and it still stalls at the same point. Thanks for any help!