XCODE 3.2.6 CRASHES

Hi All,

I have a macbook pro 10.6.7, I Installed xcode 4 and uninstalled it as its occuring some problem with configuration. Than I installed xcode 3.2.6 now whenever I starts it for first time it works fine but when I quit and restarts it again it shows a meesage in popup:

"Xocde cannot be opened because of a problem."

"Check with the developer to make sure Xcode works with this version of MAC OS X. You may need to reinstall the application. Be sure to install any availiable updates for the application and MAC OS X."

I have reinstalled the xcode many times and updated the mac os also but it does'nt work. please help

Problem details and system configuration are:

Process: Xcode [1383]

Path: /Applications/Xcode.app/Contents/MacOS/Xcode

Identifier: com.apple.Xcode

Version: ??? (???)

Build Info: DevToolsIDE-18070000~38

Code Type: X86-64 (Native)

Parent Process: launchd [90]

Date/Time: 2011-06-14 17:46:58.642 +0530

OS Version: Mac OS X 10.6.7 (10J4138)

Report Version: 6

Interval Since Last Report: 6905 sec

Crashes Since Last Report: 4

Per-App Crashes Since Last Report: 4

Anonymous UUID: 7CBEFE08-61FC-443D-AF1F-CE85AE96E8C8

Exception Type: EXC_BREAKPOINT (SIGTRAP)

Exception Codes: 0x0000000000000002, 0x0000000000000000

Crashed Thread: 0

Dyld Error Message:

Library not loaded: @rpath/DevToolsFoundation.framework/Versions/A/DevToolsFoundation

Referenced from: /Applications/Xcode.app/Contents/MacOS/Xcode

Reason: image not found

Binary Images:

0x7fff5fc00000 - 0x7fff5fc3bdef dyld 132.1 (???) <DB8B8AB0-0C97-B51C-BE8B-B79895735A33> /usr/lib/dyld

Model: MacBookPro8,1, BootROM MBP81.0047.B04, 2 processors, Intel Core i5, 2.3 GHz, 4 GB, SMC 1.68f96

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In, 384 MB

Memory Module: global_name

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 5.100.198.104.3)

Bluetooth: Version 2.4.5f1, 2 service, 12 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: Hitachi HTS545032B9A302, 298.09 GB

Serial ATA Device: MATSHITADVD-R UJ-8A8

USB Device: FaceTime HD Camera (Built-in), 0x05ac (Apple Inc.), 0x8509, 0xfa200000 / 3

USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfa100000 / 2

USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5

USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x821a, 0xfa113000 / 8

USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0245, 0xfa120000 / 4

USB Device: Hub, 0x0424 (SMSC), 0x2513, 0xfd100000 / 2

USB Device: Apple Optical USB Mouse, 0x05ac (Apple Inc.), 0x0304, 0xfd120000 / 4

USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd110000 / 3