To reset the left softkey delete the following registry values:
Code:
[HKEY_LOCAL_MACHINE\Software\HTC\Manila]
"HomeLSKText"="Action"
"HomeLSKPath"="\\Windows\\HTCActionScreen.exe"
"HomeRSKArguments"=""
"HomeRSKPath"=""
"HomeRSKText"=""
"HomeLSKArguments"=""
Just the values...