Did you use the ASPI drivers at this link in the forums? They are the latest ASPI drivers for Microstudio. You need your email address and install code to install them. Ignore that they appear to be for USB burners, they are for internal burners as well.
If you used this one, or even the other one for that matter, did you think to go into the program and change from default to MTU drivers? That's an easy step to overlook.
http://www.mtu.com/upgrades/microst...pidrivers16.exe
George