* Notifications not shown in strict reverse order of arrival. I'm seeing a decreasing set of sequence numbers, something like 10 9 8 7 6 5 0 1 2 3. Everything looks OK except for these first four which are in the wrong order.
* UserData column is very wide -- since I'm not putting anything in there this seems rather strange?
* TimeStamp shows oddly -- "0:6:15" etc where I would have expected "00:06:15" (or even the current time -- haven't investigated whether the default value should be the current time or is something else).