[Name] Payroll Checks (Decimal Place Tool) [Versions] 7.0,7.5,8.0,9.0 [Price] FREE [Description] 
There is an option under Setup | System | Currency to change the decimal places. Once you move them up (example 2 to 4) it affects all modules checks and you are not able to back it down. This tool will print checks with two decimal places only for Payroll checks and Direct Deposit.