Hi all I'm just trying to set up the LOGic v5.3 keyer interface and selecting = the correct LPT1 port adress and clicking on ' TEST' appears a Program = error window: "API call caused an exception". I'm using windows 2000 professional. Any help will be welcome. Thaks in advance EA3BHK, Xavier=20 --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html ---