I received activation key of Parallels for Mac 3.0. But I can't activate that received activation key after updating the downloaded software. The following messages to be displayed when I activate. "The activation key cannot be used with the current version of the Parallels Desktop!". Then I sent to "firstname.lastname@example.org" this activation problem one week ago already. But I haven't received reply yet. Please help my activation problem ASAP. Thanks.