I have a dual boot laptop with XP and Win 2003 server. I have a 1 TB external HD connected to the laptop, on which i want to install ECC 6 and BI 7.0. I have installed Oracle and JDK as per requirement.But when SAP ECC 6.0 installation starts it doesn't show me installation drive option for my external drive (H:). Only options are C: and D: what should i do ?