Board Thread:Questions and Answers/@comment-173.79.190.122-20130718015233/@comment-1757231-20130718032556

Are you on a homemade or paid server, or SSP? If homemade/SSP:

NEI probelm: There are many reasons why this may happen:

1. You incorrectly installed NEI or one of its plugins. Try re-installing!

2. Are you using the same computer to host and play? That in itself causes so many problems.

3. You simply haven't turned it on/used the right keycode. Check your Controls menu.

Game Crashing:

1. Are you the same guy who posted on the Crashes page? If so, follow those steps.

2. If not, check to make sure you don't have conflicting things, like double Item IDs or something.

If you have none of these problems, then I can't help you. Sorry!