Deductions & credits

I'm puzzled. I need to use 1116 (over 600 for married couple), but have no carry-over or carry-back, so will I need the new schedule B, which I gather is meant to supplement line 10, which is always zero for me? If I don't need the B attachment, why does system stall me here? I am required to file state electronically, so filing paper version is not an option--also for other good reasons. I hope the recent March 11 promise solves this. Also I wonder if this is only a problem with the online edition? I generally use the download, and in my rush to get started this year, I made the mistake of doing download, having not read completely my "notes to self." Longtime TT user.