Some people have problems with XTrap.
Here are manual patches for XTrap, provided from a reliable community source.
After downloading extract to the folder of your game that has XTrap. (Eg: S4L)
Currently available patches:
XTrap 13 August 2011: http://www.mediafire.com/?xwc28p111iuygbk
NOTICE: If you are a returning member, please reset your password to be able to log in as your old password can no longer be used. Make sure you check your spam/junk mail folder in case the reset consent mail lands there. Additionally, you may not reply to or start new topics outside of the non-archive zone.
XTrap Manual Patches
If you're going to San Francisco, be sure to wear some flowers in your head...