Some additional information about the problem :

I switched off RealTek Onboard Audio in the BIOS to minimize the chance of conflicts but that didnt solve the problem either. Below is information i get when the error occurs (after clicking [Midi Drv] and calling the driver dialog a 2nd time :

Event of problem: APPCRASH
Name of application: RealBand.exe
Version of application: 2010.5.0.2
Timestamp of application: 2a425e19
Name of errormodule: StackHash_f7b2
Version of errormodule: 6.1.7600.16385
Timestamp of errormodule: 4a5bdb3b
Exceptioncode: c0000374
Exceptionmargin: 000cdcbb
Version of O.S.: 6.1.7600.2.0.0.768.3
Country-id: 1043
Additional Information 1: f7b2
Additional Information 2: f7b2cb3a9619a15dd20b00a272c92b87
Additional Information 3: d8a2
Additional Information 4: d8a2e71942dd5a44717d91070b9d9e62

Its not a blue screen but a white dialog is shown notifying the program stopped responding.

Valentino