[Windows XP, Broadband]

I downloaded Planeshift earlier this morning, and I've had trouble with it every time I attempt to use the game.
I left the game alone for awhile, hoping it'd go away, but the problem won't stop.

The problem is, I can boot up the game fine, create characters fine, and even load the game world at an okay speed, but as soon as I enter the game world, the game begins to lag (really badly, I might add) and after anywhere from a few seconds to a minute, I get one of two messages;

• The first message I will get is runtime error. Soon after the error message appears, the game closes itself.
• The second being "Planeshift: DBGHELP.DLL not found," also closing the game immediatly.

Is there a way I can solve this, or am I just going to be unable to play this game?