I had the same problem. The fix is actually pretty easy. Just go to your services under administrative tools and select component services. At the very bottom you will see ziptoa. Just disable the service and you'll be good to go. I think the iomega drivers are still beta level quality. Basically they suck, but work enough to use. I still get a end task on one of the iomega icon program when I shutdown. Hopefully they will release some better drivers soon.