50 what? milliamps? microamps?
How many digits does your meter display?
What is the precision of you meter?
How are you reading the number?
Did you verify that you had no errors (in Error Out) when you tried to read the meter?
When you read from the meter, can you specify the number of readings you want averaged or the resolution or the aperature?
Are you just displaying the reading on your front panel or are you operating on or recording the value read?
If you're just displaying it, you can change the digits of precision for the indicator: right-click on the indicator, goto Format&Precision, then enter the Digits of Precision.
If you're operating on or recording the value read, look at using the Round to Nearest function from the Numeric palette. If the return
value is amps and you want to store to milliamps, multiply the value by 1000, use Round to Nearest, then divide by 1000.