on my jailbroken iPhone 3GS, os4.0 since last weeks cydia server crash, my cydia application does not open any more! click on cydia icon and after 3 seconds app closes again. how can I fix this so I can access cydia again?
If you have sbsettings try the fix usr directory permissions option. If not then ifile may help if you have it installed. Check the permissions on cydia.app.