Florian, I didn't have to do the F8A workaround, because I did a fresh install of the Argyl LibUSB driver. As detailed in the Argyll installation instructions, it is not necesary to do the driver signing/test mode/F8 in Win7 when freshly installing. There was no problem. It worked as described in the Installation Instructions. Also, as mentioned the driver Argyll LibUSB driver shows up in the Device Manager. -----Original Message----- From: argyllcms-bounce@xxxxxxxxxxxxx [mailto:argyllcms-bounce@xxxxxxxxxxxxx] On Behalf Of Florian Höch Sent: Sunday, June 20, 2010 11:16 PM To: argyllcms@xxxxxxxxxxxxx Subject: [argyllcms] Re: [argyllcms] Hi, have you followed the driver signing/test mode/F8 boot procedure that is necessary for the Argyll Win7 64 drivers like outlined on this list a while ago? I assume so, as you were able to install the driver. Just checking. Am 20.06.2010 21:24, schrieb nino@xxxxxxxx: > Yes, Roger, I double checked: DTP94 is linked to Argyll LibUSB driver. > When I try to run dispcal for example I get "Error - icoms - > set_ser_port: port number out of range!" > > nino > > *From:* argyllcms-bounce@xxxxxxxxxxxxx > [mailto:argyllcms-bounce@xxxxxxxxxxxxx] *On Behalf Of *Roger Breton > *Sent:* Sunday, June 20, 2010 10:18 PM > *To:* argyllcms@xxxxxxxxxxxxx > *Subject:* [argyllcms] Re: [argyllcms] > > Whew? Windows 7 64 bit giving you USB issues? You?re sure you have the > instruments linked to the Argyll LibUSB driver, and not X-Rite?s? Did > you look into Computer ? Manage ? Devices? > > Roger > > *From:* argyllcms-bounce@xxxxxxxxxxxxx > [mailto:argyllcms-bounce@xxxxxxxxxxxxx] *On Behalf Of *nino@xxxxxxxx > *Sent:* 20 juin 2010 09:23 > *To:* argyllcms@xxxxxxxxxxxxx > *Subject:* [argyllcms] > > Hi, > > I am trying to run Argyll, but the communication port of my device, a > DTP94b, is not found when I try dispcal (Under -c listno I get ** No > ports found **). I uninstalled the device completely before installing > it from scratch with the Argyll driver for win7 64bit. Didn't help. > > thanks in advance for any help > > nino -- Florian Höch http://hoech.net nino