Steema Central

When I close a Toolbook II application with an extension "Teechart6.ocx" ( but the same problem occours with version 5), three error messages appears. The first and second error refers to memory address 0x04765f2c and 0x0477ff9c. The last message says: "Runtime error 216 at 0005FAA1". Can anybody help me to understand what happens ?
Aries

I'm going to need an example with which I can reproduce the problem "as is" here. Could you please post it in the steema.public.attachments newsgroup ?