Steps to reproduce:
* Open a task item. Observe that the task item window is too small, especially on a large monitor.
* Resize the task item window.
* Close the task item.
* Reopen the same task item.
* Observe that the window has reset back to its previous size. I was unable to find an obvious way to force the window to retain the same size.

Ideally the window would reopen with the same size as when it was closed. Other PIM clients (e.g. Outlook) have this behavior.

Same problem applies to tasks / memos / calendar items, and (to a much lesser extent, since the default window size is larger) contacts.