Hi Angus, I would recommend you to remove the gadget and re-add on your desktop as your Reckon Personal Plus is fine but the gadget is not updating the transaction. Also if issue persist delete that gadget & install back from CD 2015\HAB\DISK1\QBillminder.gadget
We hope the above helps you resolving your issue. If you need further assistance, please let us know.
Cheers Mustafa