pdbsuperpose, molviewer, PDB, dimension mismatch

Dear All,

I am using this command line to superpose two PDB structures: [Dist, RMSD, Transf, PBD2TX] = pdbsuperpose(str1,'3SHI','segment',{'106-261:A', '106-261:A'},'apply','chain'); and I am getting following errors each time, which none of them are the case: Error using molviewer (line 161) Encountered error while reading the PDB structure. Subscripted assignment dimension mismatch.

Error in pdbsuperpose (line 362) h = molviewer(pdbCombo);

or

Error using pdbsuperpose>localReadInput (line 420) The input must be a PDB formatted MATLAB structure of data, a PDB file, or a valid PDB ID.

Error in pdbsuperpose (line 129) pdbStruct1 = localReadInput(PDB1);

The dimension specified are the same and bothe structures are valid PDB codes. Any help is highly appreciated.