I found the problem, and it is strange. I use several other commercial libraries (several Dew Research libraries, LMD tools, and XLSReadWriteII from Axolot for interacting with an Excel spreadsheet). By default, these packages are available when I start C++ Builder. The test program could not find t...

I checked the project files and could find nothing wrong. I created a simple program that only creates one box plot from a data array. When I reopened the program, I received the same missing TBoxSeries error message. If I change the chart so that is plots a line, I can reopen the file without error.

A program in C++ Builder 2007 and TeeChart 8.04 contains a Chart with 15 box plots. It runs without error, but when I quit Builder, then restart Builder, I get the error message "Error Reading Form - Class TBoxSeries not found...". If I "Ignore All", then delete Chart (it really isn't all there), an...