My dim memory says that years ago I thought I had purchased some bitcoin, but now I cannot find it.
- On a computer I acquired after the supposed purchase of bitcoin, which had all the user data copied to it from older computers, I found a "bitcoin" folder. This folder contained bitcoin-0.8.5-win32-setup.exe.
- I ran bitcoin-0.8.5-win32-setup.exe. It took a LONG time to sync, but finally finished recently. It showed no bitcoin.
- I closed the bitcoin program. In a sub-folder "walletsaved" was a wallet.dat file. I put that file in the place where the original wallet.dat file was located (found by a search of C:). I re-ran bitcoin-0.8.5-win32-setup.exe. It finished syncing in a short time. It showed no bitcoin.
- I also found info in a text file for login to mtgox.com, libertyreserve.com, and goldexpay.com. None of those logins work now.
Is there anything else I should do?
So, you aren't even sure that you bought bitcoin at the time? Maybe you should just let it go, it sounds like you've tried the basics if it did exist. Mtgox and libertyreserve were shut down for different reasons years ago, not sure about the other site.