HELP ~ Error in /sdcard/ update.zip(status 7)

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http://forum.xda-developers.com – SAPPHIRE PVT 32A ENG S-OFF H HBOOT-1.76.2007 (SAPP10000) CPLD-12 RADIO- 6 35 10 18 Aug 21 2009,18:19:15 i have a phone with the above information when i flash the rom from the recovery i have facing the problem of E:Error in /sdcard/ update.zip(status 7) i have found many other forum for the solution but i still cant get any yet i have format the sd card, or re download the rom file but it still the same did anyone have face this problem before?? hope someone can help me .. thx (HowTos)