How to: Deactivate math coprocessor on a Pentium computer to avoid division bug.
Solution:
Select the 'Never use the numeric data processor' radio button in the 'Numeric data processor Properties' dialog box.
NOTE: The Pentium math coprocessor may produce numerical errors when dividing large numbers. This should NOT affect day-to-day operation or the execution of most office applications. However, intensive numerical calculation, such as a Monte Carlo simulation or 'number crunching', may be adversely affected.
1) Click the 'Start' button to display the 'Start' menu.
2) Select 'Control Panel'. (The 'Control Panel' window appears.)
'Control Panel'
3) Double-click the 'System' icon. (The 'System Properties' dialog box appears.)
4) Select the 'Device Manager' tab.
'Device Manager'
5) Click the plus sign next to the 'System devices' icon in the 'Device Manager' tree. (The 'System devices' tree expands.)
6) Double-click the 'Numeric data processor' icon. (The 'Numeric data processor Properties' dialog box appears.)
'Numeric Data Processor'
7) Click the 'Settings' tab.
8) Select the 'Never use the numeric data processor' radio button.
9) Click 'OK'.
10) Click 'OK'. (The 'System Properties' dialog box closes.)
11) Click 'Yes' to restart Windows 95 and activate the new setting.
NOTE: A fix for the Pentium division bug is available from Intel.