When you upgrade to the lastest Solidworks version, all toolbox librarys need to be updated.
Solidworks Task Scheduler does have the an update tool, but it fails to run maximised, so the resulting thumbnail icons are big white boxes.
Proof that this has been an bug for a long time and that Solidworks Corp are too lazy to fix a simple bug, BUT have had the time to disabled the workaround!
You have got to be kidding Solidworks Corp, Would it have not been quicker to fix the bug than disable the workaround, that just entailed a change to a Microsoft Access sheet??
This workaround I did know about btw.
"As it stands for 2012 and 2013, this is a known issue assigned to SPR 451842. Prior to 2012 there used to be a workaround but not anymore. I have added you to the SPR and you will be notified when the issue is fixed."