MAG Dubbing Is messed UP

I always dub from the MAG DVD Recorder HDD to the DVD in 2HR mode using +RW disks. For the first time I did a recording directly to the DVD in 1 HR mode (instead of to the HDD). Now, no matter what I do, I can't get the MAG to dub to that DVD in HIGH mode. It insists on dubbing in SP mode. I recorded a minute directly to the DVD and set it to 2 HR recording (in addition to having deleted the original direct 1HR mode recording) to see if that would help. But it doesn't.

What's the key to getting the MAG to dub to this DVD in 2HR mode the way it used to? I powered off/on a few times without it making a difference.(I just tried a different disk and it is writing to that disk correctly - but I don't want to lose the use of the first disk. )

I realize this may sound trivial but it bothers me that the MAG is so messed up.

thank you