is there a quick fix for this problem?
cause when i'm about to open my inventory, minecraft crash with an NEI error.
and i check and post on the NEI Forum then found out that IC2 integration is causing this error.
Try posting the crashlog, could probably help you getting a useful answer.
Re-download IC2, this has been hotfixed shortly after the 1.64 release.
it's fixed now!
more power to alblaka and to the IC2 staff!