Hi neuby
You opened the thread " Can't find drive A" !That's ok and we are reading and responding to this thread !!
Why are you opening another thread with "Still can't find drive A 
This is contraproductive and makes responding even more complicated !!!
To which thread shall I / we respond now ?
Another hint:
Another user may have the same difficulties you experience just now !
Multiplying the threads make it very inconvenient to read and get straight to a possible solution ;-(
MY SUGGESTION TO ALL READERS:
PLS respond and suggest to the previous and already running thread
for your convenience 