Currently Being ModeratedJan 24, 2012 6:57 PM (in response to nate-nsw)
Turn it over, use a small phillips head screwdriver to take off the bottom cover ... see if the battery is ballooning. That applies pressure to the bottom of the trackpad.
Swelling batteries is happening more these days, and those batteries need to get out of the MBP to avoid killing other components.
Currently Being ModeratedJan 24, 2012 9:24 PM (in response to nate-nsw)
Have you looked at your System Preferences? What do it say about your trackpad? Make sure you check your settings there first before moving onto a more complex solution.
If this doesn't work, you could try an SMP reset for your Macbook Pro, not sure if this will help or not in this particular situation but it never hurts
Currently Being ModeratedJan 24, 2012 10:35 PM (in response to nate-nsw)
Download battery health manager. http://battery-health-monitor.soft32.com/
There is the link for it. Once you run it, you'll see that there are 3 bars. One for Current Capacity, Current Charge, Current Charge. If any of those bars are low, it could mean you need a new battery. I had the same issue it showed battery life remaing basically at nothing left. At times there was also a "!" where the battery time or percentage (depending on your settings) is on the Apple Bar. I actually had what Apple called a "bad battery" I had Apple Care so they fixed everything for free. Replaced the battery and put a new trackpad in just in case the old battery caused damage to the trackpad. Another sign that you need a new battery is over heating. The over heating will cause the battery to expand, pushing on the trackpad causing it not to respond correctly. It can eventually lead to damaging other parts. If you have Apple Care definitely get it fixed. If you don't, call your local Apple store, explain what is going on, and hopefully they can look at it and determine what is wrong with it for free. I remember on the receipt my battery was in the $200 range. Hope this helps!
Currently Being ModeratedJan 30, 2012 2:29 PM (in response to nate-nsw)
Call me crazy, but I have been experiencing the same problem with my trackpad since few days. First it started as partially disabled, but since today it is completetly frozen.
I had my Upper Case part change a month ago in an Authorized Apple Service and I sort of a suspect that they might have caused the problem.
I have also been looking for solution online with no luck so far. I tried resetting the SMC, but it didn't work.
Currently Being ModeratedJan 31, 2012 5:11 AM (in response to Vladington)
Yeah I never found a solution sorry. After a couple of days the keyboard started dying too and then it worked again. Then today I find that the trackpad is working fine as well, so I'm just going to wait and see. If it stops working again I'll probably just take it to the Apple store and get it fixed.
Currently Being ModeratedJan 15, 2013 7:21 AM (in response to Vladington)
Currently having exactly the same problem after Apple had replaced my case and after going back to them and explaining my problem and that it was fine before hand they've told me i'd have to pay to get it sorted(No more Apple Care)