Hey, yeah. I'm pretty much experiencing what Luckso is experiencing. However I can put my position in more detail.
Well, I'm sure my critter and master.dat's are in place, and I have saved them in the fo2238config.exe. After clicking play I just saw errors and a login/password screen with a black background. So I pressed enter after reading up, it simply faded to black to the exact same screen. Nothing happened, it didn't even crash. So I restarted it, pressed enter-- did the same thing. One thing I should mention, after downloading the .zip of fonline, I extracted all the files to a new folder I created on my desktop. Not sure if this helps.
So after reading up some more I decided to copy and paste my MASTER and CRITTER files into this folder and I saved them in it's new area. I tried again, didn't work. I pressed enter again-- didn't work.
I carried on reading up on what I could do, I even got a friend to help me out via teamviewer. He went into my UpdaterConsole and found out that it said: "Invalid Configuration..."
"Press any key to exit." and that was it.
So he double-clicked the normal Updater file and the file didn't load. It was frozen, didn't update anything.
So this time I read up that deleting the cache files in the data file should help. So I deleted the only file I found other than the default.cache (I did also try deleting the default cache file later, but it didn't help) which was localhost.4000.cache (There was a folder called localhost.4000, but it was a folder, and it didn't contain any cache files so I ignored it). Deleting that file seemed to do nothing, as I got the exact same error screen. On the other hand, I went back into the same data/cache file and I saw that the localhost.4000.cache file had redownloaded itself after I started up the fonline application. I deleted it again, and started up fonline. It redownloaded again, and still gave me the error. I'm not sure if this is normal, so correct me if I'm wrong.
Keep in mind, that I have tried restarting many times, atleast once or twice every attempt. I've also restarted steam once or twice, to no avail.
Later I read up some more about deleting the entire cache file. I did, after redownloading fonline again. It didn't work. So this time I redownloaded fonline again and deleted the data file as a whole. Still didn't work. I started up FOnlineGL and FOnline each attempt to make sure it was working.
...So I'm stuck on what to do. Can anyone give me a solution?