Toshiba Vista upgrade issue A105-S4384

I have received a Vista upgrade media from Toshiba for the above model laptop. The routine that runs from it initially uninstalls XP apps and drivers that are incompatible with Vista, then isntalls Vista, then installs apps and drivers for Vista previously uninstalled.

In the last part, my installs get stuck on a driver install for the 945GM display driver. It fails, then on reboot attempts to reinstall it when I rerun the update app. Has anyone else seen this and have some info on a solution. I also posted on the Toshiba forum (peer support on AOL), where I see some have this issue but no solutions posted yet.

Thanks- Bruce.