Andy,
I just went trough the basic SPC, no calibration SW ...I copied the old cal files from original partially damaged HDD C:\TekScope\calibration\ calConst.dat, etc and run SPC afterwards. I assumed those files contained original factory calibration constants, based on date stamps serial..etc...
As you said...I definitely have a driver issue...even I managed to solve device conflicts...My only chance stays in trying a Tek OS.