To be clear, the original problem that you reported ("Attempt to free pointer to memory not allocated by malloc() or calloc()") might very have been the problem that this patch fixed, which was in fact new to 2009. But that problem only happens if there were actual plots in the graph.
However, after looking at the "dynamic memory is corrupt" isse some more, it turns out that it is actually expected behavior, believe it or not. This is a limitation of easytab controls, caused by how they use callback chaining in their implementation. Whenever a panel or a control has its callback chained, you cannot change the callback, or make a copy of it after the chaining takes place. This is described in the EasyTab_ConvertFromCanvas function help ("...For the same reasons, do not call DuplicatePanel or DuplicateCtrl on any of these panels or controls after the Easy Tab control has been created.").
As you probably have read elsewhere, easytab controls are quite obsolete. They were a stopgap "solution" to the problem of there not being a native tab control in the CVI user interface library. Native tab controls were finally added in CVI 8.0, and so we recommend that, if possible, users update their code to use these instead.
Luis
