Hi Tinka28, and a warm welcome to the forum. It's great to have you aboard. grin
As we don't have a lot of info on the Viking MT640, would you be so kind as to take some pics of your machine and post them here.
This would be good for our archives and also allow us time to see if we can get our hands on the manuals for this model. wink
Instructions for using our Inline Uploader can be found HERE
Many thanks,
cheers

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin