Hah, more info,

By setting the DefaultTab to anything other than cetPrintPreview fixes the issue. Problem reoccurs as soon as user chooses to view PrintPreview page however.

No other app has problems with printing on this machine, which has 6 configured printers (local and networked)....

Using TChart Pro 5 within C++ Builder 5 (fully patched) under Windows XP Pro (fully patched). An existing application, which worked previously, now crashes with an EListError - Array Out Of Bounds [0] whenever the runtime ChartEditor is closed by the user. Happens when the app is run from within dev...