Triaxis Programme Change Problem

I have a Mark 1 Triaxis serial no T0542 non phatt and intellifex LTD running through the fx loop. I can't get the intellifex to change presets with the triaxis. I tried using the Triaxis editor on the laptop and if i go out of the laptop into triaxis and put the intellifex in the thru of triaxis it scrolls fine. I used to have the phatt mod version triaxis and it was simply a case of going out triaxis into intellifex and selecting the midi channel. Any ideas anyone?

Thanks!