I also encounter this problem and piss off is my trackpad the cursor will move it self. I have been google around etc here searching.
trackpad problem perhaps I using old , aged recharging batteries some suggest use new one. So I just straight now using non recharging batteries . yes my track pad is the first version.
" it seem " cut down or might happen again, I still monitor .
on putting display mode to sleep. I also have this problem. It will either can't put to sleep or auto wake up in the middle of the night or even day time while i just put my display to sleep whereas the computer still running.
If can't sleep. I switch off my track pad and turn it on again . usually it works and put the Display turn off .
on auto wake up, I still can't figure out wat happen. the WORST case is been auto wake up and the track pad cursor anyhow random move itself , sometimes close my program etc.
DO NOTE IS not virus so call remote control . I already checked. is not.
I also do a what NVRAM reset , still got these problem .