Command and conquer generals online

[ja7mad]

i have downloaded the online patch and followed the instructions carefully and evrything works but when i try to play online the game checks for updates and downloads them after that the game doesn't lauch again, it gives a "technical error" so i have to un/reinstall the game again ?

i could use some help (please tell me the order of installation and what i should do if the serial # is already taken by a user playing online)