Please see this message and related, which may solve your problem.
http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0707&L=SPM&P=R23455
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Darren
On Tue, Aug 26, 2008 at 12:08 PM, Farchione, Tiffany
<[log in to unmask]> wrote:
> Hello all,
>
> I've been having trouble with my second level analyses (fMRI), and can't
> seem to figure out the problem. Things were working fine, and I've
> successfully run the analyses in the past…but, now I've added more subjects
> and nothing is working. When I hit "run" after setting up the 2nd level,
> the design matrix is displayed, but then just stays on the screen. It's as
> if it gets stuck there, but there's no error message in my MATLAB window at
> that point. Then, when I try to display the results, nothing happens in the
> SPM window, but I get this error in MATLAB:
>
> ??? Reference to non-existent field 'xVol'.
>
>
>
> Error in ==> spm_getSPM at 197
>
> q = SPM.xVol.M - speye(4,4);
>
>
>
> Error in ==> spm_results_ui at 264
>
> [SPM,xSPM] = spm_getSPM;
>
>
>
> ??? Error while evaluating uicontrol Callback.
>
>
>
> I've gone back as far as redoing everything from the 1st level on, but keep
> getting the same error. If anyone can help, I'd really appreciate it!!!
>
> Thanks,
>
> Tiffany
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