Hi Joseph,
Please check the Regional Settings for your OS. Control Panel -> Region and Language. In the Formats page, at the bottom is "Additional settings...". Check the settings that you have currently setup for Decimal Symbols, digit grouping symbol, etc. The Tool and Stock tables are processed based on these settings. If you are trying to process a table where the decimals use the comma, while your system thinks Decimal symbol is a period, it will cause a problem.
-bill