Originally Posted by chaley
When calibre detects the kobo, it asks windows for the list of drives so it can mount the kobo's memory. This causes windows (not calibre) to poll A:. If the kobo is not completely detected (busted memory or an unknown drive string), the process repeats in a bit.
Can you explain what you mean by "not completely detected"? In my naivety, I would have thought that a device would either be detected or not. What does "not completely detected" actually mean?