Hi.  I am enrolled in St. Clair College, 3-year Accounting.  I was wondering if there is anyway to revert to an older version of the Sage 50 Accounting 2016, Canadian Edition.  The class is using the 2016.2 version, and being the fool I am, I updated the one on my personal laptop AND the computer at the college with the 2016.3 version.  Now the files on the disc I need for marks need to be updated for me to use them and I think I messed up the school system pretty bad.  I'm primarily concerned about getting this fixed on my laptop, and leave the College to deal with it's network.   All I know is that the professor wants us to print off all the appropriate statements for marks, and that my payroll and tax figures will be different from the class.   Any advice will be appreciated.  Thanks!