hai ^^
im guessing you get an error and you have a stupid window thing that pops up and said random gibberish then ends with
job: novice. In that case, you need to update ur kRO and Sakray
If u got some other error I cant help u >.>, other than to reinstall the files (cuz like theory said, it might b corrupted)
If u are kinda challenged, you must open the client, press the OK button thing with ur cursor or press enter on ur keyboard, then u type in ur log in info.
enjoy =D