Hello, I was referred here thru windowsbbs.com about this mysterious desktop popup appearing at random, usually after booting to windows 7 Home Premium (64 bit). Have no idea where it is originates. Just wondered if anyone knows how to track this down? It is grey box stating: The application was unable to complete an operation Details: A duplicate value cannot be inserted into a unique index. [Table name = Properties Constraint name = PK_Properties] Any ideas please? Thank you.