Alcohol 120% make smartburn.exe fail

My system is liteon 451S@851s on Sec/Master in ide channel.(besides I have one SATA SiliconImage chip on pcibus only connect one SATA Harddisk).
Before install Alcohol 120%(,smartburn can detect my CD-R media
code, but fail to detect after install alcohol 120%.(but DVD media code can be detect) Does anyone have this issue ?