unplayable: hopping

he guys,

i downloaded PWI and doesnt work proper.

when im in game my charachter hops suddenly foward then a few steps backward then hop forward then again steps backward.

like some kind of lag although server is 180MS..

i am using an dual core so i was thinking about using DCO since i have an amd bu still it is the same. also changed to 1 cpu still problem is hereb:cry

redownloaded last night did package check, vid driver update etc etc ofcourse.

No luck,

system specs:

Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.080814-1236)
Language: Dutch (Regional Setting: Dutch)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: Phoenix - AwardBIOS v6.00PG
Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 4800+, MMX, 3DNow (2 CPUs), ~2.5GHz
Memory: 1022MB RAM
Page File: 404MB used, 2056MB 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
Card name: ATI Radeon X1950 GT

(copy from dxdiag)