Hi, I have a Toshiba Tecra M4 Tablet PC that is about 2 years old.  1 year ago, the machine froze during use requiring a hard reset.  When it was reset it failed to post (all I got was a black screen).  After several hard resets from this state, I got the machine to restart.  Now, after the machine runs for a period of time (sometimes 5 minutes, sometimes 25 minutes), it freezes again and goes into the failure at POST.  Now, sometimes it takes 30-40 hard resets at the start to get it to POST and boot - but when it does the machine runs perfectly until it freezes. If, when the machine is running properly, I do a normal shutdown, the startup is uneventful.  It seems that a hard reset is what causes the problem at startup. I have updated the BIOS to the latest version.  I have tried disconnecting the CMOS battery, taking out the laptop battery, etc in an effort to reset the CMOS - nothing works. Any suggestions?  I feel like this is a (relativley) minor problem, as the rest of the machine works 100%.  What I am looking for is a method to reset the BIOS right after I do a hard reset.  I think this will clear whatever issue is preventing the POST. Thanks,