一開3D games電腦就重新開機..~!! HELP!

我都唔知做咩事...我之前玩過Rakion, 但係一入到個game room start game 之後我部機就自己重新開機... Now 我想玩Rappelz (應該係香港的神魔傳說online) 我一選完個種族我部機又係咁重新開機... 請問有咩方法我先可以正常咁玩到呢D 3D games a...?? 我之前玩Sims1都係咁會重新開機 load 唔到請幫幫忙...

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System Information
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Time of this report: 5/18/2009, 01:02:16
Machine name: KAID
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090206-1234)
Language: Chinese (Regional Setting: Chinese)
System Manufacturer: NVIDIA
System Model: AWRDACPI
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: AMD Athlon(tm) XP 2600+, MMX, 3DNow, ~1.9GHz
Memory: 1022MB RAM
Page File: 1082MB used, 1381MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode

唔該...