Hello, i got exactly the same problem on win7 x64 with 3 sessions :
1 admin (shows correctly all sensors),
1 user with some privileges (aida does not load automatically and missing sensors) &
1 user with parental control (same as user 2).
I thought that installing aida64 individually for each session would solve that problem but EVEN if i give administrator rights for running Aida64 to users.
I cannot figure aida64 develppers didnot think about this problem??