I just installed a dual video card by nvidia on my spare computer running Windows 98. Both monitors are on but I am unable to drag my cursor to the other screen. Does anyone know what further adjustments I should do to make both monitors/screens work? Any help much appreciated.
By "... both monitors being on", I presume you mean that both are lit up, not just powered on?
Check the placement of your monitors in Display/Settings. Perhaps the setting is for the 2nd monitor to be on the other side of your primary?