soapUI 4.0.1 on MacOS 10.6.8 requires frequent Force Closes

I'm unable to troubleshoot my test failures because I have to force quit soapUI before I can open the test editor. I've been able to create and run a test suite as recent as last week but force quits are occurring faster and frequently to the point that I can't use the app.

Please let me know if there is any other information I can provide.

Thanks,
Humboldt

java version "1.6.0_29"
Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-10M3527)
Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode)

Problem Report from MacOS:
Date/Time: 2011-12-09 18:18:44 -0800
OS Version: 10.6.8 (Build 10K549)
Architecture: x86_64
Report Version: 7

Command: SmartBear/soapUI-4.0.1
Path: /Applications/SmartBear/soapUI-4.0.1.app/Contents/MacOS/JavaApplicationStub
Version: (4.0.1)
Parent: launchd [160]

PID: 1741
Event: hang
Duration: 5.49s (sampling started after 2 seconds)
Steps: 16 (100ms sampling interval)

Pageins: 1
Pageouts: 0


Process: JavaApplicationStub [1741]
Path: /Applications/SmartBear/soapUI-4.0.1.app/Contents/MacOS/JavaApplicationStub
UID: 501

Thread dc4f DispatchQueue 100
User stack:
16 (in JavaApplicationStub + 6125) [0x27ed]
16 (in JavaApplicationStub + 6354) [0x28d2]
16 (in JavaApplicationStub + 7209) [0x2c29]
16 launchJavaApplication + 39 (in JavaApplicationLauncher) [0x7c6f]
16 launchJavaApplicationWithJVMInfo + 1400 (in JavaApplicationLauncher) [0xa8d0]
16 startupJava(LauncherArgsStruct*) + 342 (in JavaApplicationLauncher) [0x86be]
16 CFRunLoopRunInMode + 97 (in CoreFoundation) [0x9a53b1f1]
16 CFRunLoopRunSpecific + 452 (in CoreFoundation) [0x9a53b3c4]
16 __CFRunLoopRun + 1071 (in CoreFoundation) [0x9a53beef]
16 __CFRunLoopDoSources0 + 1563 (in CoreFoundation) [0x9a53e42b]
16 __NSThreadPerformPerform + 705 (in Foundation) [0x97293738]
16 -[CPerformer perform] + 259 (in libawt.jnilib) [0x5a890ae1]
16 +[AWTStarter startAWT:] + 2019 (in libawt.jnilib) [0x5a891314]
16 -[NSApplication run] + 821 (in AppKit) [0x996881f3]
16 -[NSApplicationAWT nextEventMatchingMask:untilDate:inMode:dequeue:] + 132 (in libawt.jnilib) [0x5a8f39a7]
16 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 156 (in AppKit) [0x996c5dd6]
16 _DPSNextEvent + 847 (in AppKit) [0x996c6595]
16 BlockUntilNextEventMatchingListInMode + 81 (in HIToolbox) [0x95600a3e]
16 ReceiveNextEventCommon + 158 (in HIToolbox) [0x95600af5]
16 RunCurrentEventLoopInMode + 392 (in HIToolbox) [0x95600e04]
16 CFRunLoopRunInMode + 97 (in CoreFoundation) [0x9a53b1f1]
16 CFRunLoopRunSpecific + 452 (in CoreFoundation) [0x9a53b3c4]
16 __CFRunLoopRun + 6523 (in CoreFoundation) [0x9a53d43b]
16 mshMIGPerform + 492 (in HIServices) [0x94d4a041]
16 _XCopyElementAtPosition + 370 (in HIServices) [0x94d786a9]
16 _AXXMIGCopyElementAtPosition + 435 (in HIServices) [0x94d6e109]
16 CopyElementAtPosition + 302 (in AppKit) [0x9992c805]
16 -[NSApplication(NSApplicationAccessibility) accessibilityHitTest:] + 265 (in AppKit) [0x9993fdcc]
16 -[NSViewAWT accessibilityHitTest:] + 125 (in libawt.jnilib) [0x5a8f5ace]
16 -[JavaComponentAccessibility accessibilityHitTest:withEnv:] + 206 (in libawt.jnilib) [0x5a913a1f]
16 JNFCallStaticObjectMethod + 84 (in JavaNativeFoundation) [0xc3412]
16 JNI_GetCreatedJavaVMs_Impl + 1782 (in libjvm.dylib) [0x31dd0b0]
16 JVM_FindLoadedClass + 3478 (in libjvm.dylib) [0x31be2d5]
16 JVM_Lseek + 162116 (in libjvm.dylib) [0x3199547]
16 JVM_Lseek + 162160 (in libjvm.dylib) [0x3199573]
16 JVM_Lseek + 162812 (in libjvm.dylib) [0x31997ff]
16 [0x6001374]
16 [0x6003f97]
16 [0x6003f97]
16 [0x6003e31]
16 [0x6003e31]
16 [0x6003e31]
16 [0x600b9d9]
16 Java_apple_awt_CToolkit_doAWTRunLoop + 344 (in libawt.jnilib) [0x5a8febbc]
16 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 279 (in Foundation) [0x972b71b3]
16 CFRunLoopRunInMode + 97 (in CoreFoundation) [0x9a53b1f1]
16 CFRunLoopRunSpecific + 452 (in CoreFoundation) [0x9a53b3c4]
16 __CFRunLoopRun + 2079 (in CoreFoundation) [0x9a53c2df]
16 mach_msg_trap + 10 (in libSystem.B.dylib) [0x97532afa]
Kernel stack:
16 ipc_mqueue_receive_continue + 0 [0x210d84]

[ ... Trimmed for character limit in soapUI Bugs forum]

Model: MacBookPro6,2, BootROM MBP61.0057.B0C, 2 processors, Intel Core i5, 2.53 GHz, 4 GB, SMC 1.58f16
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.10.131.42.4)
Bluetooth: Version 2.4.5f3, 2 service, 12 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Serial ATA Device: Hitachi HTS725050A9A362, 465.76 GB
Serial ATA Device: MATSHITADVD-R UJ-898
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0236, 0xfa120000 / 5
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8218, 0xfa113000 / 8
USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0xfa130000 / 3
USB Device: Hub, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0xfd120000 / 4
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0xfd110000 / 3