Targus Adapter is Freezing my computer!

Now, there was no issue before I installed the software, but after I did and was able to connect to my GPS (after several tries and several re-installs and removals of the software) my computer began to act funny. First, it refused to go all the way through a restart - my screen stayed blank after the initial boot. The OS never loaded, or even attempted to load. Second, another attempted restart brought up Windows Vista's Repair dialogue. The repair was unsuccesful even after a Restore was done (or attempted. No actual changes were made that I can trace). The computer did not reboot properly. After removing the USB adapter from it's USB port, I then discovered that the Gateway Laptop would reboot properly again. Immediately, I resigned myself to the possibility that I may have to reboot without the adapter connected every time. That was not the case. Once reconnected, my laptop gave the expected notification that my hardware was connected and then froze completely. Removing the adapter did not alleviate the condition. The Laptop had to be restarted again. I hope someone has an answer for me. This adapter's promised functionality is something I really want, and for the price is exceptionally good. If the problem lies in Windows Vista Home (Which I also hope to upgrade or downgrade if there is no solution regarding the OS) I will gladly switch Operating Systems.