<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">Some time ago I had startup issues with my 500MHz TB. I tried the reset button and zapping<div>the PRAM as described with no success. At the genius bar I learned it can be reset </div>
<div>(I don't remember if this was a PRAM reset or something else) by unplugging external power and</div><div>taking out the battery, and then pressing the start button for 5 seconds. PRAM or something similar </div>
<div>is drained by the startup attempt w/o any power source, getting rid of what can be causing the problem.</div><div>Sure enough that did it and I haven't had any problems since. Don't expect the TB to start up that way. </div>
<div>After the 5 seconds let go of the start up button, replace the battery and/or external power then press </div><div>the start button. Of course you loose some settings like time and date but I didn't loose things like </div>
<div>network settings.</div><div><br></div><div><font color="#888888">Doug</font></div></span><div><br></div><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
On 24 Dec 2009, at 21:42, Robert Rakita wrote:<br>
<br>... there was a reset button (on the back, recessed, needed a paper clip to activate it).<br>.... </blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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Also, try zapping the P-RAM (restart with option-Apple-P-R keys pressed until the 2nd chime)<br>
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</blockquote></div><br>