Apple keyboard problem
When typing on my keyboard my comma&period keys don't function at all
what is the solution other than replacing the keyboard?
Typically such issues are caused by dirt or liquid having got into the microswitch(es) under the keys on the keyboard.
Short-term solutions - if your keyboard has two Command keys, use the one that works; if the decimal point (on the keypad part of the keyboard, if your keyboard has such) works, use it instead of a period.
Long-term choices -
• If the keyboard is a separate item (not built-in like on a laptop), you can try washing it to get rid of the contaminant. Pull power from the keyboard - unplug it or remove its batteries. Get some distilled water (grocery stores often have it, like for steam irons), warm it (body temp is good), fill a sink with it then immerse the keyboard in that. Slosh it around, Drain and repeat. Then hang the keyboard up (suspend it from one corner) until it is completely dry - this may take a couple of days or so. You can use a fan to help, but do not apply heat.
• Quicker, or if washing the keyboard does not work - replace the keyboard.