Yesterday crash was due to corrupted player data involving a dolly with a barrel. We can't reproduce it, so for now we seat tight and hope.
Pack was updated to fix an energy consumption bug with WarpDrive (RF was giving ~16x more power then IC2). It's also include a largely improved mining laser with automated program, support for multiple lasers connected over LAN wiring, better graphics, increased ranges, etc. For the record, you can plug an ME cable directly to the mining laser! Mining will stop if it can store the item, after spitting it on the ground. In space, mining laser use a bit less power than a BuildCraft quarry while being a bit faster.
Also, this update address the Radar with 2 basic programs and a few other minors fixes.
When using AirGenerators, keep in mind it'll lag your client if you put too much of them. Server will hardly feel it but most clients will have a bit of FPS lag (lots of transparent blocks) and eventually slow connection (lots of bandwidth usage). As such, they were slowed down to help with it.
We still have an IC2 energy net bug crashing the server every now and then. Please be careful to cut the power before dismounting IC2 cable/fibers and machines. It greatly reduce the chance of crashes.
As a word of advice, when the server crash right after you login or do something, please consult an admin instead of chain crashing the server. It'll be better for other players so they can play and it'll help us narrow down the issue faster. Obviously, crashing voluntarily the server will not be tolerated...
On the bright side, auto-restart on crash now works properly, yeah!
As always, please report your comments/suggestions in the forum, especially on WarpDrive recent changes as more changes/tweaks are in the plan.