OSX95, TF stopped functioning after pram zap

Running TF 1.1.17. Was troubleshooting with Apple top level tech about an unrelated sound prob. this morning. Zapped pram at his request and TF has not worked since. I have uninstalled/reloaded twice, prefs are all there as before, keystrokes, boxes checked etc. but only standard apple windows open. Used the TF uninstaller, but if all my selections are still there after uninstall and reinstall, there must be a plist file or something sticking around? Maybe its corrupted?