'Invalid MEX-file' error with Eyelink toolbox and Windows 10

Hi,


I'm trying to use the Eyelink toolbox in Psychtoolbox, but it looks like something's missing from my installation, since I get the above error when calling Eyelink. 


I've installed Microsoft's C run-time libraries, the Eyelink SDK (and added it to the path), but no luck. What else should I be trying? I'm all up-to-date on the Psychtoolbox side of things (rev 8038).


Thanks,

Nick