>they work with dos,linux,windowes Nt 95 & 98 -- a 4 port board will give >you com1-4 on 1 interrupt. 8 or more ports will probably be inaccessable >due to the inability of the PIC programming software.. (I.E. the guys >that wrote the programming app dont understand or know of the existance of >such devices (they have been around cince 1986) Which is typical of most >commercial software. but a 4 port board should work great, and you dont >get the dreaded com1-com3 conflict with a mouse. My Basicstamp software >works with my 8 port board :-) So whose board are you using, or is it a state secret?