<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><div><div><blockquote type="cite"><span class="Apple-style-span" style="color: rgb(0, 0, 0); "><font face="Calisto MT"><span style="font-size: 14px; ">Are you plugged in, or running on battery, when the MBP shuts itself down?</span></font> _______________________________________________<br></span></blockquote></div><div><br></div>Plugged in.<div><br></div><div><blockquote type="cite" class=""><span class="Apple-style-span" style="color: rgb(0, 0, 0); ">Have you checked your preference settings under the Power Manager? They may have been changed after you did the multiple reboots.<br></span></blockquote><div><br class="webkit-block-placeholder"></div><div>Checked and nothing changed.</div><div><br></div><div>Time Machine's inability to complete backups now seems to indicate some sort of system-level problem I suspect.</div><div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><div><div><div><br>All the best, Colin</div><div><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></body></html>