cheers dude, i can open the c1 and the other c1 compressers just the mono 1s i cant. i think it ask'd me if i wanted to install the directx aswell as the vst and dxi. i think i only ticked the vst & dxi. doh. i uninstalled it. and reinstaled it but it didnt giv me a directx box ta tick this time. if that makes sense dude.