Using the v4 rom, I get the same problem. I can enter my account info and read the ToS, but after that, all I get is a server error. There was a marketplace update in mid December. I went and pulled down the 2.2.7 release for Android 2.1 and installed it via ADB. After clearing all data on the device the following sequence occurs. Start Market Prompted for Google login credentials Login succeeds and I get booted back to the home screen. Start Market I get prompted to accept the TOS Accept TOS Booted back to home screen Start Market Get "A server error has occurred. Retry, or cancel and return to the previous screen."