Couldn't even download the installer

when i am trying to run Diablo-III-Beta-enUS-Setup.exe, the Diablo TTT setup box pops out but it stucks in "Updating setup files"

look into the agent.log,

#-----------------------------------------------------------
# System started at 2011-11-22 11:34:59.6306
# system: KWOKTSZFAI-PC
#-----------------------------------------------------------
11:34:59.6320 Database Insert: /
11:34:59.6328 Database Insert: /agent
11:34:59.6330 Database Insert: /backfill
11:34:59.6331 Database Insert: /game
11:34:59.6332 Database Insert: /gamesession
11:34:59.6333 Database Insert: /install
11:34:59.6334 Database Insert: /option
11:34:59.6335 Database Insert: /repair
11:34:59.6336 Database Insert: /update
11:34:59.6337 Database Insert: /register
11:34:59.6338 Database Insert: /version
11:34:59.6339 Database Insert: /agent/download
11:34:59.6563 AgentFirewall - Failed to add program to firewall.
11:34:59.6564 AgentFirewall - AgentAdmin successfully ran.
11:34:59.6565 Initialize HttpProtocol Server Called.
11:34:59.6585 Agent started on port #1119
11:34:59.6586 Registered Periodic Event: "auth validation event" with a resolution of 10000 and a start delay of 10000
11:34:59.6587 Registered Event: "shutdown event"
11:34:59.6588 Registered Event: "database flush event"
11:34:59.8351 Request Issued: GET /agent
11:34:59.8355 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1007.000000,
"version" : "1.0.0.515",
"authorization" : "6B7A18475162D3FFB2EA7C86D786C499"
}
11:34:59.8509 Request Issued: GET /agent
11:34:59.8512 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1007.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:34:59.8662 Request Issued: GET /agent
11:34:59.8666 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1007.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:34:59.9911 Request Issued: GET /agent
11:34:59.9913 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1007.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:35:00.1156 Request Issued: GET /agent
11:35:00.1159 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1007.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:35:00.2356 Incremental patch:
11:35:00.2358 -source url: http://ak.worldofwarcraft.com.edgesuite.net/d3-pod/20FB5BE9/NA/Patches/agent516/agent-515-516-win.mpq.torrent
11:35:00.2362 -dest: C:\Users\KWOKTS~1\AppData\Local\Temp\Blizzard\AgentUpdate_DD39F887\agent-515-516-win.mpq
11:35:00.2403 Request Issued: GET /agent
11:35:00.2406 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1001.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:35:00.3653 Request Issued: GET /agent
11:35:00.3655 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1001.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:35:00.4902 Request Issued: GET /agent
11:35:00.4905 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1001.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
11:35:00.6151 Request Issued: GET /agent
11:35:00.6153 Response: 200
{
"update" : {},
"install" : {},
"backfill" : {},
"pid" : 3176.000000,
"state" : 1001.000000,
"version" : "1.0.0.515",
"authorization" : "678CD15488A35E73119233568424F9D0"
}
.
.
.

from this point it repeats again and again.

anyone having the same problem?