Just curious, may i know which address are you pinging? Would like to try it myself as i find my web browsing to be normal. Only BT and MIRC upside down.

this might be a lil bit off topic ...

Microsoft Windows XP [Version 5.1.2600]
© Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\user>ping www.lowyat.net

Pinging www.lowyat.net [202.190.197.144] with 32 bytes of data:

Reply from 202.190.197.144: bytes=32 time=62ms TTL=52
Reply from 202.190.197.144: bytes=32 time=51ms TTL=52
Request timed out.
Request timed out.

Ping statistics for 202.190.197.144:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 51ms, Maximum = 62ms, Average = 56ms

C:\Documents and Settings\user>ping www.lowyat.net

Pinging www.lowyat.net [202.190.197.144] with 32 bytes of data:

Reply from 202.190.197.144: bytes=32 time=64ms TTL=52
Reply from 202.190.197.144: bytes=32 time=84ms TTL=52
Reply from 202.190.197.144: bytes=32 time=65ms TTL=52
Reply from 202.190.197.144: bytes=32 time=54ms TTL=52

Ping statistics for 202.190.197.144:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 54ms, Maximum = 84ms, Average = 66ms

C:\Documents and Settings\user>ping www.ahyap.com

Pinging ahyap.com [202.75.42.56] with 32 bytes of data:

Reply from 202.75.42.56: bytes=32 time=62ms TTL=56
Reply from 202.75.42.56: bytes=32 time=60ms TTL=56
Reply from 202.75.42.56: bytes=32 time=71ms TTL=56
Reply from 202.75.42.56: bytes=32 time=101ms TTL=56

Ping statistics for 202.75.42.56:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 60ms, Maximum = 101ms, Average = 73ms

C:\Documents and Settings\user>ping www.yahoo.com

Pinging www.yahoo-ht2.akadns.net [209.131.36.158] with 32 bytes of data:

Reply from 209.131.36.158: bytes=32 time=251ms TTL=47
Reply from 209.131.36.158: bytes=32 time=253ms TTL=48
Reply from 209.131.36.158: bytes=32 time=262ms TTL=48
Reply from 209.131.36.158: bytes=32 time=261ms TTL=47

Ping statistics for 209.131.36.158:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 251ms, Maximum = 262ms, Average = 256ms

C:\Documents and Settings\user>ping www.hinet.net

Pinging www.hinet.net [61.219.38.89] with 32 bytes of data:

Request timed out.
Reply from 61.219.38.89: bytes=32 time=421ms TTL=238
Reply from 61.219.38.89: bytes=32 time=416ms TTL=238
Reply from 61.219.38.89: bytes=32 time=415ms TTL=238

Ping statistics for 61.219.38.89:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 415ms, Maximum = 421ms, Average = 417ms

As for me connection i'm wondering if it's affected by packet shaper? I was up whole night doing some revision but my BT is constant at 5kbs with 3 tasks combined.