Check the windows settings to see what format the decimal character has. Many computers run with a comma, others with a period.
I would guess that ComputerA uses Period ".", whereas ComputerB uses comma ",".
Alternatively you can change the default LabVIEW behaviour in the options (I think it`s called "use local decimal point").
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)