关于使用DPARSF的几个问题。

各位老师们好，我在使用DPARSF过程中 有以下几个地方不明白，希望老师们能帮我解惑。
问题1，我在预处理时没有勾选 Extracting ROI time courses这几项，可是计算完fALFF后该Regress out nuisance covariates 时 就总报下列错误：（DPARSF设置如附件1所示）
 Read 3D EPI functional images: "E:\Analysis\FunImgNormalizedSmoothedDetrendedFiltered\Sub_001".

  ROI time courses retrieving through "D:\DPARSF_V2.0_110505\Templates\BrainMask_05_61x73x61.img".
  ROI time courses retrieving through "D:\DPARSF_V2.0_110505\Templates\CsfMask_07_61x73x61.img".
  ROI time courses retrieving through "D:\DPARSF_V2.0_110505\Templates\WhiteMask_09_61x73x61.img".
  Extracting ROI time courses over, elapsed time: 6.95764 seconds.
??? Error using ==> horzcat
CAT arguments dimensions are not consistent.

Error in ==> DPARSF_run at 925
            Covariables=[Covariables,theROITimeCourses];

Error in ==> DPARSF>pushbuttonRun_Callback at 939
    [Error]=DPARSF_run(handles.Cfg);

Error in ==> gui_mainfcn at 96
        feval(varargin{:});

Error in ==> DPARSF at 41
    gui_mainfcn(gui_State, varargin{:});
 
??? Error while evaluating uicontrol Callback
 

问题2，DPARSF在运行ReHo时 是默认的先ReHo后smooth吗？为什么我不管是点上smooth还是不点smooth 总是出如下错误：（这个错是在不点smooth 并点上data without smooth情况下运行的错误，设置界面见附件2。我把smooth点上还点上data without smooth 还是出同样的错误。）
Running 'Smooth'
Failed  'Smooth'
Error using ==> spm_vol>subfunc at 101
File "E:\Analysis\Results\ReHo\mReHoMap_Sub_001.img" does not exist.
In file "D:\spm8\spm_vol.m" (v4045), function "subfunc" at line 101.
In file "D:\spm8\spm_vol.m" (v4045), function "subfunc1" at line 77.
In file "D:\spm8\spm_vol.m" (v4045), function "subfunc2" at line 69.
In file "D:\spm8\spm_vol.m" (v4045), function "spm_vol" at line 54.
In file "D:\spm8\spm_smooth.m" (v4172), function "spm_smooth" at line 33.
In file "D:\spm8\config\spm_run_smooth.m" (v3915), function "spm_run_smooth" at line 20.

The following modules did not run:
Failed: Smooth

??? Error using ==> cfg_util at 835
Job execution failed. The full log of this run can be found in MATLAB command window, starting with the
lines (look for the line showing the exact #job as displayed in this error message)
------------------
Running job #3
------------------

Error in ==> spm_jobman at 217

Error in ==> DPARSF_run at 786

Error in ==> DPARSF>pushbuttonRun_Callback at 939

Error in ==> gui_mainfcn at 96

Error in ==> DPARSF at 41

??? Error while evaluating control Callback
问题3，进行功能连接时，Predefined ROI中的方法1（from statistical map by selecting cluster after thresholding ）和方法4（from user defined mask file）分别怎么做？这4种方法都各自适用于哪些情况？

新手问的问题又多又渣，老师们见谅，期待你们的回复！