Thanks, it certainly helped (turned out there were two unrelated problems, the #load "nums.cma" and (blush) the fact that my PATH contained a cygwin ocaml without my noticing, which got executed instead -- no wonder the Environment didn't match). 

cheers,

Marcus




--------------------------------------- 
Marcus Uneson 
Dept. of Linguistics 
Lund University 

Phone:   +46 46 222 04 39
Fax:     +46 46 222 42 10 
e-mail:  marcus.uneson@ling.lu.se 
www:     http://person.sol.lu.se/MarcusUneson/