[Tp. Pipe crash!]

I have a severe problem with TP pipes. Whenever I rightclick one, my game crashes. Other people on the server that I play on can open them just fine. I have allocated 4gb of ram. Any suggetions of how to fix this would be greatly appreciated. The problem does not persist in Single Player.

[Lag, but don't know why?]

Sponge and Chezzik, you nailed my problem on the head! It was an issue with MATMOS and, is there any way to turn it off and still be able to hear ingame sound without the dumb ambient noise?

[Lag, but don't know why?]

Yes, the problems persist. I have to play with fast, short to get a framerate of 30. If you have any suggestions, I would be very greatful

[Lag, but don't know why?]

So, my favorite server started a tekkit thing, so I installed everything and went to SSP firs and noticed an immense ammount of lag. Usually, I can play with the highest settings on Vanilla with about 90fps. I don't know what is wrong but I get a lot of lag. I don't think that it is an issue with hardware as I have an i7 at 2.4ghz, an Nvidia 525M and 8gb ram. I also have allocated 4gb of ram to Tekkit. Any suggestions would be great. Yes, I have updated Java.