Remap [Function] key on a Gateway laptop
As the FN key is not handled by the Windows keyboard driver, any remapping of the it is impossible by any Windows utility that switches keys, because it doesn't generate any scan-codes.
You should therefore regard your BIOS to see if a "Swap FN and CTRL" option already exists. If not, maybe a future BIOS upgrade will solve the problem.
In the meantime, you can use this solution (just joking):