Clips only show audio in PE9, but run fine in Organizer

Question

In PE 9 the preview of my clips only show the wave of the audio.
I have reinstalled PE9 but it makes no difference. Startup is incredibly slow, it easily takes 10 minutes for a project to open..
I have tried to delete the prefs file at appdata\roaming\adobe\prem elements\9.0\Premiere elements prefs  but it makes no difference (is this the right file? it has no extension).
On the net there is a tip to click ctrl-alt-shift and then click to start up PE, whioch then supposedly gives you an option to delete the prefs, but I dont think anything happens.
Extra strange is that it all used to work all right, suddenly the clips were audio only. I cannot pipoint a change on my system that could the the cause.It happened after I worked a lot in Organizer.
BTW My program is on C, the data are on D.
Does Organizer treat clips differently then PE itself?
Thanks

Answer 1

My Event Log gives the following event linked to the refusal of Organizer to start:
Log Name: 
Application
Source:   
Application Error
Date:     
12-3-2015 22:02:21
Event ID: 
1000
Task Category: (100)
Level:    
Error
Keywords: 
Classic
User:     
N/A
Computer: 
VENOM3
Description:
Faulting application name: PhotoshopElementsOrganizer.exe, version: 9.0.0.0, time stamp: 0x4ca3a3b5
Faulting module name: PhotoshopElementsOrganizer.exe, version: 9.0.0.0, time stamp: 0x4ca3a3b5
Exception code: 0xc0000005
Fault offset: 0x0018f549
Faulting process id: 0x1300
Faulting application start time: 0x01d05d07d222ed55
Faulting application path: C:\Program Files (x86)\Adobe\Elements 9 Organizer\PhotoshopElementsOrganizer.exe
Faulting module path: C:\Program Files (x86)\Adobe\Elements 9 Organizer\PhotoshopElementsOrganizer.exe
Report Id: 129a40d6-c8fb-11e4-b37e-20cf30f2fd34
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2015-03-12T21:02:21.000000000Z" />
<EventRecordID>127857</EventRecordID>
<Channel>Application</Channel>
<Computer>VENOM3</Computer>
<Security />
  </System>
  <EventData>
<Data>PhotoshopElementsOrganizer.exe</Data>
<Data>9.0.0.0</Data>
<Data>4ca3a3b5</Data>
<Data>PhotoshopElementsOrganizer.exe</Data>
<Data>9.0.0.0</Data>
<Data>4ca3a3b5</Data>
<Data>c0000005</Data>
<Data>0018f549</Data>
<Data>1300</Data>
<Data>01d05d07d222ed55</Data>
<Data>C:\Program Files (x86)\Adobe\Elements 9 Organizer\PhotoshopElementsOrganizer.exe</Data>
<Data>C:\Program Files (x86)\Adobe\Elements 9 Organizer\PhotoshopElementsOrganizer.exe</Data>
<Data>129a40d6-c8fb-11e4-b37e-20cf30f2fd34</Data>
  </EventData>
</Event>