Sonar 8.5.3 - Windows 7 32bit, Sonar doesn't start anymore

About 5 month ago, I installed a fresh Windows 7 on my laptop (Lenovo R61i) and a fresh installation of Sonar with all updates. All works fine!

But now, from one day to another, Sonar can't start anymore. Windows says there is a problem and look for some solution. Send some information to ... I hope Microsoft - and thats it. :(
I have tried the compatibility mode of Win XP, but this doesn't work. I have removed some programs that I think they could may be bad for sonar. Nothing. 
Had new installed Sonar - same thing. Sonar will not start anymore. What can I do accept a new Windows installation?


PS: I have tried Sonar in Windows safe mode, thats ok, Sonar will start. OK, not the right audio drivers, but Sonar start.

PPS: Found an error code id 1000! Don't know what thats mean.

Thank you bitflipper.  It was the event-id 1000, not the error id!
Here is an errorlog file from Windows7:

<?xml version="1.0" encoding="UTF-16"?>
<WERReportMetadata>
<OSVersionInformation>
<WindowsNTVersion>6.1</WindowsNTVersion>
<Build>7600 </Build>
<Product>(0x30): Windows 7 Professional</Product>
<Edition>Professional</Edition>
<BuildString>7600.16539.x86fre.win7_gdr.100226-1909</BuildString>
<Revision>1</Revision>
<Flavor>Multiprocessor Free</Flavor>
<Architecture>X86</Architecture>
<LCID>1031</LCID>
</OSVersionInformation>
<ParentProcessInformation>
<ParentProcessId>3608</ParentProcessId>
<ParentProcessPath>C:\Windows\explorer.exe</ParentProcessPath>
<ParentProcessCmdLine>C:\Windows\Explorer.EXE</ParentProcessCmdLine>
</ParentProcessInformation>
<ProblemSignatures>
<EventType>APPCRASH</EventType>
<Parameter0>SONARPDR.exe</Parameter0>
<Parameter1>17.0.0.221</Parameter1>
<Parameter2>48c6cf90</Parameter2>
<Parameter3>ntdll.dll</Parameter3>
<Parameter4>6.1.7600.16559</Parameter4>
<Parameter5>4ba9b21e</Parameter5>
<Parameter6>c0000005</Parameter6>
<Parameter7>0002fc77</Parameter7>
</ProblemSignatures>
<DynamicSignatures>
<Parameter1>6.1.7600.2.0.0.256.48</Parameter1>
<Parameter2>1031</Parameter2>
<Parameter22>0a9e</Parameter22>
<Parameter23>0a9e372d3b4ad19135b953a78882e789</Parameter23>
<Parameter24>0a9e</Parameter24>
<Parameter25>0a9e372d3b4ad19135b953a78882e789</Parameter25>
</DynamicSignatures>
<SystemInformation>
<MID>8EA30D3B-903F-445F-B4C3-530B6CE7F61B</MID>
<SystemManufacturer>LENOVO</SystemManufacturer>
<SystemProductName>8943A29</SystemProductName>
<BIOSVersion>7QET42WW (1.24 )</BIOSVersion>
</SystemInformation>
</WERReportMetadata>

But I got no minidump file from Sonar.  
Next Information from the event viewer:
<Event xmlns="http://schemas.microsoft....n/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="2010-07-22T18:58:30.000000000Z" />
     <EventRecordID>14675</EventRecordID>
     <Channel>Application</Channel>
     <Computer>lenovowin7</Computer>
     <Security />
    </System>

- <EventData>
  <Data>SONARPDR.exe</Data>
     <Data>17.5.1.148</Data>
     <Data>4aa923cd</Data>
     <Data>ntdll.dll</Data>
     <Data>6.1.7600.16559</Data>
     <Data>4ba9b21e</Data>
     <Data>c0000005</Data>
     <Data>0002fc77</Data>
     <Data>ed4</Data>
     <Data>01cb29cfdc7bfba3</Data>
     <Data>C:\Program Files\Cakewalk\SONAR 8.5 Producer\SONARPDR.exe</Data>
     <Data>C:\Windows\SYSTEM32\ntdll.dll</Data>
     <Data>1d9d5bb4-95c3-11df-a110-000ae4c9a284</Data>
    </EventData>
</Event>   

OK, Sonar works now! Thank you Middleman, thanks to Cakewalk Support!!!

My problem was the (original) audio driver for my Echo Indigo IO PCMCIA Soundcard!

I'm using now Asio4all 2.10 and Sonar is running better than ever.

This solution tooks me about 11 hours for 3 (or 5? don't now) new installations of Sonar, running 2 registry cleaner, costs me about 70 US Dollar for two registry cleaners, and all over all - that was no fun!