However, a positive ANA reading alone does not indicate an autoimmune disease. 1  The prevalence of ANAs in healthy individuals is about 3 - 15%. 2  Some medications can cause a positive ANA. 3  Other conditions, such as cancer, can cause a positive ANA.
Driver is unavailable. There is no user action in the Devices page, which displays a status message that says âDriver unavailableâ. The user needs to get support from the device manufacturer. Driver error. There is no user action in the Devices page, which displays a status message that says âDriver errorâ.
According to members of Flyertalk, unavailable can mean that the criteria for advance purchase for your date has not been met for that flight (IOW, you're too late to purchase that flight as a WGA fare). It can also mean that someone else has those seats in their checkout queue but has not purchased them yet.