>Hi - thanks for the help. I am not sure which line - this error occurs in the compiled runtine system not in the development environment. All I get is "Error #12 in Opendoc" opendoc is the form method that contains the code.

It's a good programing practice to have error handler in place in your application. It helps with runtime errors debugging tremendously. Take a look at article 'Error handling in VFP' by Doug Hennig at http://stonefield.com/techpap.html an the error handler project at http://www.ideaxchg.com/ix07/er/_sys/toccontu.htm. In VFP8 the Structured Error Handling was introduced http://www.code-magazine.com/focus/Article.aspx?quickid=0301072.