Zig Zag problems
Every time I've used the zig zag (or similar) stitch on my Elna Pro Quilting Queen, it skips stitches. By this I mean that it will zig zag a while, then throw in one or several straight stitches. This has happened ever since it was new. I've had her about 3 years, and that's really the only problem I've had. Any ideas as to what could cause this?