In such cases you open the settings for User Preferences(Ctrl+Alt+U) and go to Objects Tab and Uncheck the Ignore Calculation limits and then reload the data. This would work.
The QlikView documentation says to leave the Ignore Calculations box checked unless you are on a older version. To increase virtual memory on your computer, right click My Computer, select Properties, Advanced, click Performance Settings, and under Performance Options click Avanced again. The bottom portion indicates the current Virtual Memory, Paging File Size. Click the Change button to change the size that your desire. Hope this helps.
