Thanks for the info. I guess I misunderstood the procedure. I thought that Argyll used the manufacturers drivers and that the purpose of oeminst was to install those. I had run oeminst, apparently successfully, so I thought that had taken care of it. Alan --- On Tue, 5/28/13, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote: From: Graeme Gill <graeme@xxxxxxxxxxxxx> Subject: [argyllcms] Re: dispcal can't find usb port in Windows7 To: argyllcms@xxxxxxxxxxxxx Date: Tuesday, May 28, 2013, 12:40 AM Alan Rockwood wrote: > ** No ports found ** > Any hints as to where to go from here? You need to install the drivers. See <http://www.argyllcms.com/doc/Installing_MSWindows.html> > By the way, I installed the spyder2pro2.3.5 drivers, supposedly > successfully. You can't use the OEM's drivers with ArgyllCMS. Graeme Gill.