Used QuickPwn 2.1 for Windows, everything worked fine for a day, then 3G connections keeps dropping now, even making voice phone calls/receiving phone calls became flaky, sometimes outgoing calls can not be made, neither receiving calls. WIFI works fine. I don't recall which Cydia app installed was causing this, but these are all I installed: 1. Winterboard 2. OpenSSH 3. BossPrefs (does this ring a bell??) 4. Dock Prefs 5. Cycorder 6. buch of themes for winterboard 7. MobileInstallation cracked 8. iLog 2.1 9. FieldRunner ipa Anybody had the same problem? Any insight will help!! Thanks a bunch!