Hello there I used this to configure my back key to get out of SMS when replying to messages
Step by step hardware keyboard fix.
Install RaphKbdControl_CDMA.CAB
http://forum.ppcgeeks.com/attachment...4&d=1255514244
It will install into Settings folder.
It will be listed as Keyboard Config.
Run it and hit Menu/Add key
Press the Back Key.
Scroll down to the Action field and chose "Run program"
Next scroll down to the Program field.
There are 2 options here. Typing it in is faster.
1. Browse to Windows folder and click messaging_client.exe or
2. Manually type in \Windows\messaging_client.exe
Hit Update config in the left softkey and test
Hit ok
It work for me hope it help