I've just installed the latest version of the Professional Themes - v1.0.10075.1330, release 1st Feb 2010 - and now the theme explorer crashes on startup. The event log isn't much help, but it seems to indicate that the app is throwing an unhandled XamlParseException.
I've included the event log entry and error report files below:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Windows Error Reporting" />
<EventID Qualifiers="0">1001</EventID>
<Level>4</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-02-02T18:07:30.000000000Z" />
<EventRecordID>102946</EventRecordID>
<Channel>Application</Channel>
<Security />
</System>
<EventData>
<Data />
<Data>0</Data>
<Data>CLR20r3</Data>
<Data>Not available</Data>
<Data>0</Data>
<Data>ZRZCLYFCJMCUOOYSAX5ILYVKKY24VKFP</Data>
<Data>1.0.10076.0</Data>
<Data>4b5f00ef</Data>
<Data>PresentationFramework</Data>
<Data>3.0.0.0</Data>
<Data>4a174fbc</Data>
<Data>624f</Data>
<Data>e1</Data>
<Data>System.Windows.Markup.XamlParse</Data>
<Data />
<Data>C:\Users\richard\AppData\Local\Temp\WER2D8D.tmp.WERInternalMetadata.xml</Data>
<Data>C:\Users\richard\AppData\Local\Microsoft\Windows\WER\ReportArchive\AppCrash_ZRZCLYFCJMCUOOYS_68878e7e87035ec34f036212c3c0a5ec2c8d9_1c743195</Data>
<Data />
<Data>0</Data>
<Data>d2758f66-1025-11df-9f15-0019d14caffe</Data>
<Data>1</Data>
</EventData>
</Event>
Version=1
EventType=CLR20r3
EventTime=129096071414531881
ReportType=2
Consent=1
UploadTime=129096071417256595
ReportIdentifier=a439ca83-1024-11df-9f15-0019d14caffe
Response.type=4
Sig[0].Name=Problem Signature 01
Sig[0].Value=ZRZCLYFCJMCUOOYSAX5ILYVKKY24VKFP
Sig[1].Name=Problem Signature 02
Sig[1].Value=1.0.10076.0
Sig[2].Name=Problem Signature 03
Sig[2].Value=4b5f00ef
Sig[3].Name=Problem Signature 04
Sig[3].Value=PresentationFramework
Sig[4].Name=Problem Signature 05
Sig[4].Value=3.0.0.0
Sig[5].Name=Problem Signature 06
Sig[5].Value=4a174fbc
Sig[6].Name=Problem Signature 07
Sig[6].Value=624f
Sig[7].Name=Problem Signature 08
Sig[7].Value=e1
Sig[8].Name=Problem Signature 09
Sig[8].Value=System.Windows.Markup.XamlParse
DynamicSig[1].Name=OS Version
DynamicSig[1].Value=6.1.7600.2.0.0.256.1
DynamicSig[2].Name=Locale ID
DynamicSig[2].Value=2057
UI[2]=C:\Program Files\Xceed\Xceed Professional Themes for WPF v1.0\bin\Xceed.Wpf.Themes.Samples.ThemeExplorer.exe
UI[3]=Xceed.Wpf.Themes.Samples.ThemeExplorer has stopped working
UI[4]=Windows can check online for a solution to the problem.
UI[5]=Check online for a solution and close the program
UI[6]=Check online for a solution later and close the program
UI[7]=Close the program
LoadedModule[0]=C:\Program Files\Xceed\Xceed Professional Themes for WPF v1.0\bin\Xceed.Wpf.Themes.Samples.ThemeExplorer.exe
LoadedModule[1]=C:\Windows\SYSTEM32\ntdll.dll
LoadedModule[2]=C:\Windows\SYSTEM32\MSCOREE.DLL
LoadedModule[3]=C:\Windows\system32\KERNEL32.dll
LoadedModule[4]=C:\Windows\system32\KERNELBASE.dll
LoadedModule[5]=C:\Windows\system32\ADVAPI32.dll
LoadedModule[6]=C:\Windows\system32\msvcrt.dll
LoadedModule[7]=C:\Windows\SYSTEM32\sechost.dll
LoadedModule[8]=C:\Windows\system32\RPCRT4.dll
LoadedModule[9]=C:\Windows\system32\SHLWAPI.dll
LoadedModule[10]=C:\Windows\system32\GDI32.dll
LoadedModule[11]=C:\Windows\system32\USER32.dll
LoadedModule[12]=C:\Windows\system32\LPK.dll
LoadedModule[13]=C:\Windows\system32\USP10.dll
LoadedModule[14]=C:\Windows\system32\IMM32.DLL
LoadedModule[15]=C:\Windows\system32\MSCTF.dll
LoadedModule[16]=C:\PROGRA~1\Sophos\SOPHOS~1\SOPHOS~1.DLL
LoadedModule[17]=C:\Windows\system32\PSAPI.DLL
LoadedModule[18]=C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorwks.dll
LoadedModule[19]=C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4927_none_d08a205e442db5b5\MSVCR80.dll
LoadedModule[20]=C:\Windows\system32\shell32.dll
LoadedModule[21]=C:\Windows\system32\ole32.dll
LoadedModule[22]=C:\Windows\system32\profapi.dll
LoadedModule[23]=C:\Windows\assembly\NativeImages_v2.0.50727_32\mscorlib\8c1770d45c63cf5c462eeb945ef9aa5d\mscorlib.ni.dll
LoadedModule[24]=C:\Windows\system32\CRYPTBASE.dll
LoadedModule[25]=C:\Windows\system32\uxtheme.dll
LoadedModule[26]=C:\Program Files\Kayako\LiveResponse\VSSH.dll
LoadedModule[27]=C:\Program Files\Logitech\SetPoint\lgscroll.dll
LoadedModule[28]=C:\Windows\system32\ntmarta.dll
LoadedModule[29]=C:\Windows\system32\WLDAP32.dll
LoadedModule[30]=C:\Windows\assembly\NativeImages_v2.0.50727_32\System\5ba3bf5367fc012300c6566f20cb7f54\System.ni.dll
LoadedModule[31]=C:\Windows\assembly\NativeImages_v2.0.50727_32\WindowsBase\c2f9dd7db911053edcaaadf5fefc500a\WindowsBase.ni.dll
LoadedModule[32]=C:\Windows\assembly\NativeImages_v2.0.50727_32\PresentationCore\7b459c5815af8123e4bf30d4e05bba65\PresentationCore.ni.dll
LoadedModule[33]=C:\Windows\assembly\NativeImages_v2.0.50727_32\PresentationFramewo#\68e5eeb3c6ef18ba2dc1ad70eb74aeee\PresentationFramework.ni.dll
LoadedModule[34]=C:\Windows\Microsoft.NET\Framework\v3.0\WPF\wpfgfx_v0300.dll
LoadedModule[35]=C:\Windows\system32\OLEAUT32.dll
LoadedModule[36]=C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorjit.dll
LoadedModule[37]=C:\Windows\system32\dwmapi.dll
LoadedModule[38]=C:\Windows\system32\CRYPTSP.dll
LoadedModule[39]=C:\Windows\system32\rsaenh.dll
LoadedModule[40]=C:\Windows\system32\VERSION.dll
LoadedModule[41]=C:\Windows\system32\urlmon.dll
LoadedModule[42]=C:\Windows\system32\CRYPT32.dll
LoadedModule[43]=C:\Windows\system32\MSASN1.dll
LoadedModule[44]=C:\Windows\system32\iertutil.dll
LoadedModule[45]=C:\Windows\system32\WindowsCodecs.dll
LoadedModule[46]=C:\Windows\system32\d3d9.dll
LoadedModule[47]=C:\Windows\system32\d3d8thk.dll
LoadedModule[48]=C:\Windows\system32\atiumdag.dll
LoadedModule[49]=C:\Windows\system32\atiumdva.dll
LoadedModule[50]=C:\Windows\assembly\NativeImages_v2.0.50727_32\PresentationFramewo#\39f5a71b5185d267b0f55cd4cea26d6b\PresentationFramework.Aero.ni.dll
LoadedModule[51]=C:\Windows\system32\apphelp.dll
FriendlyEventName=Stopped working
ConsentKey=CLR20r3
AppName=Xceed.Wpf.Themes.Samples.ThemeExplorer
AppPath=C:\Program Files\Xceed\Xceed Professional Themes for WPF v1.0\Bin\Xceed.Wpf.Themes.Samples.ThemeExplorer.exe
ReportDescription=Stopped working