uigetfile - limit of files which can be loaded

How to improve number of files which can be loaded with uigetfile command

Description

This script I use to improve the contrast of images by using imadjust command. The only problem is limited number of files (about 40 - 50) which can be processed at once.
The code is:

function autocontrast

    warning off
    clc;
    clear all;
    
%--------------------------------------------------------------------------
[FileName,PathName] = uigetfile('*.tiff','Select any image', 'MultiSelect', 'on');

    if PathName~=0;
       n= length (FileName)
        
        for a=1 : 1: n
            input_image=imread([PathName,FileName{a}]);
 
I_imadjust = imadjust(input_image);
%figure, imshow(input_image_imadjust);
%----------------------------------------------------------------------
        mkdir(PathName,'imadjust')
        FN1= fullfile(PathName,'imadjust',FileName{a});
        imwrite(I_imadjust,FN1);
        
                end
    end

• MATLAB release: MATLAB 7.1.0 (R14SP3)

[Thierry Dalon]

This is no real contribution. More a support question!
See answer at:
http://www.mathworks.com/support/bugreports/details.html?rp=258791

[Mateusz Matysiak]

I updated my software to 2008 version and it helped. Thanks