Any way to disable ALT+TAB/WIN+TAB on Bluetooth keyboard in ICS?

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http://forum.xda-developers.com – I'm trying out the Touchpad as an RDP client for my work Windows machine. With a Bluetooth keyboard and iTap RDP, it works very well, but one thing that's annoying is that Android/ICS traps certain key combinations instead of sending them through to Windows, e.g., ALT+TAB (Symbol+Tab on the HP Touchpad BT keyboard) and WIN+TAB (Home+Tab on the HP keyboard). Another one that gets trapped is WIN+E which should open an Explorer window but instead tries to launch the Android email client. Does anyone know if these Android keys can be disabled, ideally just while the RDP client is running, but w (HowTos)