Twister 0 Posted June 14, 2009 I have a Desk Top, & a MH721 US Cutter. When I cut something it won't let me cut. I have a usb port which is plugged it but it says when i go to cut can not open out put device. Can anyone tell me what to ddo.. Thanks.. Share this post Link to post Share on other sites
xturdfergusonx 1 Posted June 14, 2009 do a search, there are quite a few topics on this already... it seems to be a common problem with a simple solution... Make sure the correct com port is selected in setup and possibly try the serial cable and not the usb cable. Share this post Link to post Share on other sites
Twister 0 Posted June 15, 2009 I have the USB Already in, and i'm not exactly sure what Serial port it should be in. Share this post Link to post Share on other sites
cutme 5 Posted June 15, 2009 i don't have time to search through it, but look through these posts on port settings. hope this helps http://forum.uscutter.com/index.php?action=search2 bb Share this post Link to post Share on other sites