Answer to "Cant swipe to answer incoming call"Ah, my previous solution didn't stick. THIS works for me: before swiping to answer, press and hold the answer button for 1 second, then swipe before letting go.
Answer to "Why isn't my MacBook's trackpad working properly?"Sometimes the trackpad problem can be attributed to pressure on the underside. If your particular model has the battery placement under the trackpad or palm rests, here's a simple test: plug into external power, remove battery. If the pad/curser now works properly, then you might have a battery that is beginning to bulge, putting pressure on the backside of the pad. This often happens with after-market batteries.