Reminder to Everyone
As we (hopefully) approach the launch of NEM sometime in the near-ish future, I think it is important to clarify a few things for everyone now and also encourage everyone who is a stakeholder to check that they have everything ready and prepared for launch to reduce the number of potential disasters and complaints when launch does finally happen.
As patmast3r has said a few posts back, the first thing everyone who is a stakeholder needs to do is to make sure that you still have the private key you received when you redeemed your stake. Without this private key, you will not be able to access the XEM that you are entitled to, so if you have lost it or something then you need to act on this immediately before the NEMesis block is generated at launch.
Secondly, please remember that the testnet we are all using now to beta test is not in any way related to the real NEM network at launch. This means that your wallets, accounts, or whatever else you have created for the testnet will not work on the actual NEM network after launch. So, remember, anything you do on the testnet is just for testing and getting to know how NEM works.
When launch eventually happens, you will be creating a new wallet from scratch just like the first time you ever used NEM and then loading the private key you received when you redeemed your stake to gain access to the XEM you are entitled to based on how many stakes you redeemed. But again, remember that without your private key, you will not be able to access your XEM so you need to make sure you have that stored safely and ready to load into the client after launch.
So I checked my account data and did first update to 0.5.16 and installed java 8 64bit.
Then I couldn't login to my account. The client told me that there is no address book and didn't let me login.
Then I deinstalled NEM wallet, reinstalled it, deinstalled it, reinstalled it several times with several restarts.
While installing there was a warning: "Problem running post-install step. Installation may not complete
correctly. Problem creating launcher in C.\Program Files (x86)\nem-0.5.13" same with nem-0.5.16
The address book warning was: Sadly Oops!, Error 121, The address book file does not exist.
After fiddling back and forth an hour I could finally login into my wallet with my password and could verify public and
private key together with my real NEM N-account. The Address book warning was still there but the wallet had let me login...
Hope this was only on my PC (there is also a Nxt, NODE, Crypti and NFD wallet working the same time)......
btw. I'm on win 8.1 64 bit