I also think it might be down to the cable. The first RS232 cable is defiantly a NULL female to female cable, but I don't think the second USB convertor cable is. I've had a look online & found the cheapest Keyspan USB convertor device is on eBay for �40 so I'll order one of them & see if it works. I'll get back to with the results.

Thanks Richard & Carl

Thanks guys
Marc

Current System # 568.2, DSP5500 (24/96), DSP5500C (24/96), DSP33 rears, M1500 subwoofer


Previoursly Owned # DSP5000(MK1 24/96), DSP5000C(MK1 24/96), Denon Amp, ProAc 1SC speakers, ProAc Hexa & Studio Centre, B&W DM603s3 & 601s2 & LCR 60 speakers, Sonus Faber Minuetto speakers.