attached is the zip from the new support tool results. lets focus on the most important computer that needs to be resolved, and if the results do not work for the other computers also, we can address them at that point.

Workarounds
 

Thanks for sticking with this one to try to figure out why these certain machines running XP generate USB-level errors with DisplayLink devices.

These kinds of issues are difficult (especially if only on PCs DisplayLink doesn't have).

So if there are any workarounds that might be possible while DisplayLink looks at this, please let us know if we can help.

For example, if getting the graphics adapters behind a hub solves the issue, we'd like to send you some Plugable hubs to cover the affected machines.

Just email support@plugable.com and reference this thread, and we'll do whatever we can.

Thanks again for your patience!
Bernie Thompson
http://plugable.com/

the powered hub did work. just wanted to let anybody else who has this same problem.