First off, I admit my stuff is old, I haven't used it in a long time but I just got the itch to get into it again. However the following problem I'm about to describe is one reason I stopped using it. First off, the specs

Surface Pro 3 with W8
Artrage 4.5.3

My problem is a weird one apparently, I've not found anything about this problem on the net. The problem isn't the pen, it works just fine...until I've used Artrage for a few minutes then it won't draw. It will still adjust the tools but it won't make any marks on the "canvas". I have to close Artrage and reopen it to get use of the pen to make marks on the canvas again.

Any ideas?