What is this error message?

[Mark McLeod]

The infamous notepad core dump. If I remember rightly it actually pops up in a new notepad window.

The only time I've seen it happen on pure default code was when you're using the 2004 original version of IFI_loader v1.0.5 (in IFI_Loader click on "About" to see the version #). The original had a bug that only allowed it to download 16K instead of the available 32K. Make sure you've downloaded the latest from the IFI site.

I've seen it occur usually due to running out of RAM or data memory, but that won't be the case with the default code.
Translation: You've added too many new variables and used (in total) more than the 1800 bytes the controller has available.