Edirol UA-4FX External Sound System "directsound output error 88780078" Questions

...DirectSound output v2.2.10 error..Bad DirectSound driver.please install proper drivers or select another device configuration..Error code 88780078...would you help me find problem solving for my PC ? ...

...directSound output v2.47 (d) error My long standing WinAmp suddely started giving me the following message: ''Bad Direct Sound driver, Please install proper drivers or select another device in ...

directsound driver. Please install proper drivers or select another device in configuration. Error code: 88780078. im dying not to hear anything from my winamp. please help me what to do step by step.