@TaxGuyBill 

Wednesday night I filed 2 returns that bounced on Minnesota with the following message:

 M1M line 29 must not be more than 488 for single, HOH or MFS, and no more than 976 for MFJ

That would be great if they got one of those little checks that Uncle Tim mailed out, but they didn't receive that payment.  However, they had other items on the M1M.  I updated my software last night, put 0 on line 29 and e-filed them a second time and they cleared today.  Now I'm not sure if the software was fixed in between transmissions or if I need to put 0 on line 29 if there are other items on form M1M from now on.  Have you come across the "unexpected behavior" that I bumped into?