Labview 8.0 hangs during start

Question

I am having a recurring problem with LV8.0 hanging during start every few weeks.  I startI click the LV icon, LV appears in the Windows taskbar and then it hangs.  The NI splash does not appear.  Once this behavior starts, it does it every time thereafter.  In the Windows Event viewer, I get the following message:
Event Type:    Error
Event Source:    Application Hang
Event Category:    (101)
Event ID:    1002
Date:        3/13/2006
Time:        8:19:56 PM
User:        N/A
Computer:    JA3
Description:
Hanging application LabVIEW.exe, version 8.0.1.4000, hang module hungapp, version 0.0.0.0, hang address 0x00000000.
I have contacted NI Support, but they were unable to provide a resolution other than suggesting a reinstall.  I've done a complete reinstall of LV 8.0 two times already and am poised to do it a third time.  I'm getting fed up with the uninstall/reinstall approach since this sucks up 1/2 day of my time per episode.
There are two potentially relevant entries in the Event Viewer, that occurred prior to LV8.0 going into perpetual hang mode.
Event Type:    Error
Event Source:    Application Error
Event Category:    None
Event ID:    1000
Date:        3/12/2006
Time:        3:33:37 PM
User:        N/A
Computer:    JA3
Description:
Faulting application labview.exe, version 8.0.1.4000, faulting module lvdaq.mxx, version 1.0.0.49154, fault address 0x0001a1a7.
Event Type:    Information
Event Source:    NI Variable Engine
Event Category:    None
Event ID:    0
Date:        3/13/2006
Time:        6:22:14 PM
User:        NT AUTHORITY\SYSTEM
Computer:    JA3
Description:
The description for Event ID ( 0 ) in Source ( NI Variable Engine ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event:
NI Variable Engine started.
Executable: C:\Program Files\National Instruments\Shared\Tagger\tagsrv.exe
Plug In Path: C:\Program Files\National Instruments\Shared\Tagger\
Plug Ins: LogosRTServer, NI OPC Server Plugin., LogosRTClient.
Any help in finding a solution to this recurring issue would be appreciated!
Thanks!

Answer 1

I'm glad to hear the ini file solution worked.  It was my first guess as to the source of the problem. The differences are so few between the good and bad file it would be useful if you could try a few edits to narrow the source of  the problem.  I only suggest this because it may be difficult to reproduce at NI since the problem may be specific to your installation of various NI software.  This will probably only take 10-15 minutes.
You'll see in the ini files that the differences come down to the lines that start with the list below.  I am most suspicious of the section starting ProbeDefaultCache.  I don't think the window position or recent files list has anything to do with the hang.  I am not sure why there are parenthesis around ",CleanUpWire" in the good ini file.  Everything below the empty line below is only in the bad ini file and not in the good.  I think I would start by 1) making it hang again with the bad ini file, 2) deleting everything from the bad ini below the empty line below, 3) putting quotes around ",CleanUpWire" in the 4th line below, 4) deleting the recent files list, 5) updating the window position, AND FINALLY 6) changing the ProbeDefaultCache to that of the good ini file.   If it turns out to be 2 that fixes the problem, I'd add it back and then delete lines one at a time. 
Let me know what you find.
Kitt
ProbeDefaultCache=
ProjectExplorer.ClassicPosition=45,28,620,380
RecentFiles.pathList=
NoAdvice070=,CleanUpWire
FPGADialogControl=compileWarningIfBitfile
MenuMRUItems="Toolsptions...,1391;"
FPFont="" 120 IS
NewDlgRecentMainTemplates.pathList=""
NewDlgBounds=800;600
NewDlgLastSelected=C26E7225-44A0-4CDD-8B16-BA9836DBD5A7
NewDlgSmall=False
NewDlgCollapsed=VI
NewDlgRecentTemplates.pathList=""
DontShowProjectRemoveDialog=True