Recompile All Scripts
From GECK
Selecting this recompiles all the scripts and results scripts in the masterfiles and loaded plug-in. Any errors are sent to the Warnings.txt file.
Do NOT use this! EVER! Unless you are trying to detect script errors in the base game scripts or in very large mods with tons of scripts. Never ever save your plugin after running this command.
If you are trying to detect script errors, you can have the Script Editor window open to see the name of the script when the GECK has a popup error.