I am also have somewhat of the same problem, when i run my patcher now, it cant find the dat file. not sure why,  all i did was defrag my puter, which i have done before with the patcher on my puter.  any idea why it cant see the dat file, i installed the pather into my file the correct way and everything.  i was just playin yesterday, now it doesnt work!  ........................ 
