Hello. To give a little context, I've been trying to play on an RP server for some time and they've been using a modpack including hydrocraft, but almost 90% of the time something weird happens. Here's a couple of screenshots:

http://images.akamai.steamusercontent.com/ugc/305489015288193203/6DDD8B9BD6AF1252C7F7657719C29A48FD02D2DD/ - After a few seconds in the game.

http://i.imgur.com/XxfH14t.png - Looting a bookcase.

So, along with the weird text and such, in the second picture, all hydrocraft items are oddly blanked out. I turned off the modpack and turned on hydrocraft exclusively, and the same thing happens.

Any ideas on how to fix this?