Most Netbooks do not meet the minimum system requirements for Sighthound Video, which can be found here. Some customers have reported that they have been able to run Sighthound Video on their Netbooks, which is possible since processing requirements vary tremendously depending on the scene and other factors. More details can be found here.
In addition, if you have a Netbook with 1024 x 600 resolution, the bottom controls of the screen will not fit on the screen. One workaround is to set the resolution at 1024 x 768, which displays the entire window but requires you to scroll the desktop to see it.