oh yeah, also the weirdest thing:

When i tried to create a new wallet account in the v2.0 software, everything works as expected. A new address is created with a balance of zero (obviously).

However when i tried running the old v1.0.1_49-2 software again, my old account was gone and the new account that was generated from within the v2.0 software showed up instead! With a balance of zero of course! I thought; jeeeez now ive done it... ive lost my old wallet account and all my mined coins in there...

But it turns out, i still had the console running with the new gdbix deamon. Closing that and restarting the v1.0.1_49-2 software thankfully restored my old wallet! Pfew!!! Crisis averted....