Guild Wars 2

Hello, i keep crashing and geting an error, I have updated drivers, disabled background errors, ran the game with the antivirus and firewall off, reinstalled the game in another location, etc, and i still keep crashing, i dont know what else to do, the report that arena net gives me after every crash is this. Any help would be apreciated.

—> Crash <—
Assertion: A file was corrupted in the archive. Please run once with ‘-repair’!
File: ..\..\..\Game\Main\MainCli.cpp(589)
App: Gw2.exe
Pid: 3236
Cmdline:
BaseAddr: 00400000
ProgramId: 101
Build: 17121
When: 2013-03-16T16:14:02Z
Uptime: 0 days 0:17:44
Flags: 0

—> System <—
Name: ANI-PC
IpAddr: 192.168.0.8
Processors: 8 [GenuineIntel:6:10:9]
OSVersion: Windows 6.1 (64 bit)

—> System Memory <—
Physical: 12714MB/16330MB 77%
Paged: 28737MB/32660MB 87%
Virtual: 2096MB/ 4095MB 51%
Load: 22%
CommitTotal: 3922MB
CommitLimit: 32660MB
CommitPeak: 4032MB
SystemCache: 4858MB
HandleCount: 20574
ProcessCount: 53
ThreadCount: 836

—> Process Memory <—
Private: 1381MB
WorkingSet: 1175MB
PeakWorkingSet: 1220MB
PageFaults: 1965658

—> Game Context <—
MapId: 39
Flags: 0×241
ElapsedTime: 00:08:51

So i wrote tech support and they give me the typical copy paste answers like, disable background programs, reinstall the game, but nothing really useful, anybody here knows something else? because im sick of crashing and really thinking i might have to change game :/

i post my logs in case anybody here can help me