Installed the Beta12 patch on my XP laptop too. No problems with installation and RB running well.
One thing I did notice this time, is that when doing the driver update, it is a 2 part process.
- First you need to tell the update where the FTDIBUS.inf file is.
- Then you have to tell it where the FTDIBUS.sys file is - and the default location suggested by the upgrade window was not AirNav RadarBox 2007\Drivers as far as I can remember. It might have been \Windows\System32\drivers. Would this cause the driver update to fail if this file was used?
Also, you need to acknowledge the "Driver not tested for Windows" message to comtinue with the install.