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Thanks to John and Matthew Brett for helping me solve my win NT problem.. Yes the size of header field needed to be filled in. I'm still not sure why this wasn't an issue on the unix machines.. Rachael >From: John Ashburner <[log in to unmask]> >Reply-To: John Ashburner <[log in to unmask]> >To: [log in to unmask], [log in to unmask] >Subject: Re: WinNT installation? >Date: Mon, 9 Oct 2000 10:17:34 +0100 (BST) > > >| I could use some help from anyone running spm99 on windows NT! I've just >| installed matlab and spm99 on my PC. I'm able to get spm started up, but >I >| cannot display any images. The error I get is "matrix is singular or >badly >| scaled". Also the dimensions in the display window are grossly incorrect. >| I'm able to display these images no problem on my unix implementation, so >| I'm not sure why it doesn't work on the pc? > >My suspicion is that the field containing the size of the .hdr file has >not been filled in. The spm_hread.m function checks this field (the first >32 bit integer in the file). If its value is 1543569408 (byte swapped >348), >then it knows that the .hdr and data may need their bytes swapping around. > >Best regards, >-John > _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%