When Parallels is started up by double clicking a suspended VM, there can be an interaction with Dropbox that brings Parallels to a stop.
If a Tools update is needed, the Tools download starts immediately before granting any access to XP and locks out any other interaction (except Cancel) until the Tools are re-installed.
Meanwhile, Dropbox finishes starting up in the background, notices that there are several GB of files need to be synced and gets right at it. This apparently pre-empts the Tools download because the progress bar stops moving.
If I quit Dropbox, then the Tools download starts up again and everything is ok from there. But unless I know enough to do that, it's not a natural connection to make because Dropbox gives no indication what it's doing unless you ask. I'm guessing a lot of people will stare at that frozen progress bar for a while and then just cancel the Tools download.
If a Tools update is needed, the Tools download starts immediately before granting any access to XP and locks out any other interaction (except Cancel) until the Tools are re-installed.
Meanwhile, Dropbox finishes starting up in the background, notices that there are several GB of files need to be synced and gets right at it. This apparently pre-empts the Tools download because the progress bar stops moving.
If I quit Dropbox, then the Tools download starts up again and everything is ok from there. But unless I know enough to do that, it's not a natural connection to make because Dropbox gives no indication what it's doing unless you ask. I'm guessing a lot of people will stare at that frozen progress bar for a while and then just cancel the Tools download.