For
- Armory Related Issues: https://bitcointalk.org/index.php?board=97.0
- Electrum Related Issues: https://bitcointalk.org/index.php?board=98.0
- MultiBit Related Issues: https://bitcointalk.org/index.php?board=99.0
- Bitcoin Wallet for Android Related Issues: https://bitcointalk.org/index.php?board=100.0
- Blockchain.info or any other web wallet issues: https://bitcointalk.org/index.php?board=222.0
- All other clients: https://bitcointalk.org/index.php?board=37.0
If your question is about a service that is not a wallet, post in https://bitcointalk.org/index.php?board=85.0.