I'm almost certain that you plug your flashdrive in before you power up your monitor. When you power it up everything should be automatic or self explanatory. Might be a good idea to contact your local Tech. and ask him before hand, but I don't believe it will be that big of an issue.
I am not sure what happened. When I stuck the thumb in, turned it on, it never said anything about receiving anything. I left it in while spraying but I can't say if it did anything. That is the best report I can give comrade. What do you think.