How do I fix a block mask error (version 2013a)?

(in reference to ver2013a) In the data acquisition toolbox of simulink, when I place an "Analog Input" block into my model, and then double click on it, I get an "Error opening the Mask dialog". A sampling of other blocks in the DAQ toolbox and Instrument Toolbox does not reveal the same issue. The resulting workspace warning is:

Warning: Detected 1 error(s) in daqdialog.aidlg.getDialogSchema: Invalid property: 'ClockSource'.

Recently I had to do a CHKDSK /R (repair) on my computer, due to four bad disk sectors that was prohibiting correct boot up. So it is possible that some of the Matlab files where corrupted in process. However, I downloaded and reinstalled the data acquisition toolbox, and the still get the same error.

Do I need to do a complete reinstall of the MATLAB/Simulink software or is there another less intrusive means to correct the problem?