PLZZZZZZZZZZZ......SERIOUS HDD PROBLEM!!!

HI PEOPLE ....i got a HDD problem , with my (AAO D150 )( noisy crackling & beeping noise...with associated hang-down)...any way...my local acer retailer has replaced the HDD , with another one of the same type ( SEAGATE MOMENTUS 5400 RPM 160 GB /ST9160310AS).
but...after few hours of using my netbook.. the noise and beeping come again....and still...
although i sent it back to acer ...they told me ( nothing seems to be bad !!!!!!!!!!!)...and they just reformatted it again !?!?!?
SO ...after trying to check my desk status , with ( PARTED MAGIC 4.8).. it tells me (S.M.A.R.T. PASS ), BUT AN ERROR FOUND IN THE ERROR LOG>>>>>>AND HERE IS THE MESSAGE :---------------------------------------


smartctl 5.39 2009-12-09 r2995 [i486-slackware-linux-gnu] (local build)
Copyright (C) 2002-9 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family: Seagate Momentus 5400.5 series
Device Model: ST9160310AS
Serial Number: 5SV0JWKW
Firmware Version: SD03
User Capacity: 160,041,885,696 bytes
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 4
Local Time is: Wed Feb 10 23:26:10 2010 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===


SMART Error Log Version: 1
ATA Error Count: 1
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 1 occurred at disk power-on lifetime: 31 hours (1 days + 7 hours)
When the command that caused the error occurred, the device was active or idle.

After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
40 51 00 ff ff ff 0f

Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
60 00 08 ff ff ff 4f 00 00:18:56.528 READ FPDMA QUEUED
60 00 f8 08 00 00 40 00 00:18:56.524 READ FPDMA QUEUED
60 00 08 00 00 00 40 00 00:18:56.524 READ FPDMA QUEUED
60 00 08 ff ff ff 4f 00 00:18:55.954 READ FPDMA QUEUED
60 00 08 00 00 00 40 00 00:18:55.683 READ FPDMA QUEUED

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Interrupted (host reset) 90% 36 -
# 2 Short offline Completed without error 00% 35 -
# 3 Conveyance offline Aborted by host 90% 31 -
# 4 Extended offline Completed without error 00% 22 -
# 5 Extended offline Completed without error 00% 17 -
# 6 Conveyance offline Completed without error 00% 16 -
# 7 Short offline Completed without error 00% 16 -
# 8 Short offline Aborted by host 60% 16 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
----------------------------------------------------------------------------------------------------------------------------------------------
any advise PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ?????????????????????