Difference Start/Turn Off/Standby VS Power Options Standby

[Guest livetohike]

If wrong groups please advise.

 

Is there any difference between going to sleep via method A and B

(below):

 

Method A: Start/Turn Off Computer/Standby

Method B: Control Panel/Power Options/Standby (Ex: Standby after 15

minutes)

 

The reason I ask is that I am having trouble w/ USB Flash drives.

Using method A and waiting a while before waking up causes the drive

to be unavailable until unplug and replug it in. It is visible in

Explorer but you can't read/write to it.

 

Using method B: The drives seem to work OK the next morning.

 

The drives are plugged in to a powered USB hub.

Win XP sp2

 

Thanks