Sawtooth Software: The Survey Software of Choice

SSI Web reports "Run-time error '13': Type mismatch", "Run-time error '7': Out of memory", "Run-time error '9': Subscript out of range", or "Failed to load control...", usually when previewing a question. The errors go away after a system reboot.

Version:  5.0.x, 5.2.x, 5.4.0 through 5.4.8, and 6.0.0 through 6.0.2
Products:  CiW, ACA/Web, CBC/Web, and MaxDiff/Web


After using SSI Web for a while, errors appear and SSI Web crashes, usually when previewing a question. The errors go away after a system reboot.


When a question or page is previewed, memory is used and is not recovered. This error seems to occur with Internet Explorer 7 and not with earlier versions.


SSI Web version 6.0.4 (for version 6 users) and version 5.4.10 (for version 5 users) fix this bug. You will find the latest version of SSI Web 5 and 6 on our downloads page.

If you cannot update at this time, we recommend users of Internet Explorer 7 avoid the "Preview" buttons in the product. However, "Questionnaire..." previews should not cause the problem (circled red in the graphic below).

If this does not solve the problem, please contact technical support for additional help.

Demonstrate CBC Using Only Basic Math

This survey will illustrate how Choice-Based Conjoint surveys work. It involves choosing food for dinner at a baseball game. You will take a quick 9-question CBC questionnaire, and then, using simple addition arithmetic, we will analyze your results and place the results into a "what-if" market simulator to see how your results stack up against others who have completed this survey.

Begin Demonstration