DSP window no longer displayed

[kilucas]

Thanks. I tried that but still had no success. (I wasn't quite sure I understood the footnote so perhaps I didn't do it right).

I've also removed all the dsp dlls and inis and then reinstalled dsp 1.80. And restarted the PC. But the window still won't show.

Is there anything else I should try perhaps?
Many thanks for your help
Kevin