It may be related to some other Facebook application that you installed on your computer. I thought Yontoo was to blame for slowing down my computer but it ended up being due to Farmville on Facebook. I also took my computer to Geek Squad and they told be Yontoo Layers was completely safe to use and they tested everything out and it worked just fine after getting rid of Farmville. I also contacted Yontoo.com for customer support when this issue started up and they were very helpful in figuring out what exactly was the issue. I would contact them first just to see, hope that helps. Good luck.