When you switch regional settings to French-Canada, the comma becomes the decimal symbol. In Adagio Cheques or Payables when entering amounts it will not accept the comma. If you enter a period the amount comes out 100 times what you wanted. For example if you enter 300.55 it takes it as 30,055.00. When it shows up in the distribution it can become 3,005,500.00 and so on.
If you customize the French Canada settings and change the currency symbol to the period, it seems to work fine.