Exception running NUnit 2.6 tests Follow

I'm trying to run unit tests with the latest NUnit 2.6 RC and R# 6.1

I've configured Resharper to use NUnit from "C:\Program Files (x86)\NUnit 2.6\bin\lib"

When running the tests I get an error dialog saying:

Unit Test Runner failed to load test assembly

System.IO.FileNotFoundException: Could not load file or assembly 'file:///C:\Users\[myuser]\AppData\Local\Temp\[randomstring]\[randomstring]' or one of its dependencies. The system cannot find the file specified.

I've attached a screenshot of the dialog

I ran the Assembly Binding Log Viewer and there are two assembly binding failures:

1)

*** Assembly Binder Log Entry  (2/15/2012 @ 15:27:51) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable  C:\Program Files (x86)\JetBrains\ReSharper\v6.1\Bin\JetBrains.ReSharper.TaskRunner.CLR4.MSIL.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: User = LOGIC\Blake.Grant
LOG: DisplayName = JetBrains.ReSharper.TaskRunnerFramework, Version=6.1.37.86, Culture=neutral, PublicKeyToken=1010a0d8d6380325
 (Fully-specified)
LOG: Appbase = file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = C:\Users\blake.grant\AppData\Local\Temp\covy2wfp.hd5
LOG: AppName = SimpleTests.2.6
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: No application configuration file found.
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Post-policy reference: JetBrains.ReSharper.TaskRunnerFramework, Version=6.1.37.86, Culture=neutral, PublicKeyToken=1010a0d8d6380325
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug/JetBrains.ReSharper.TaskRunnerFramework.DLL.
LOG: Attempting download of new URL file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug/JetBrains.ReSharper.TaskRunnerFramework/JetBrains.ReSharper.TaskRunnerFramework.DLL.
LOG: Attempting download of new URL file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug/JetBrains.ReSharper.TaskRunnerFramework.EXE.
LOG: Attempting download of new URL file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug/JetBrains.ReSharper.TaskRunnerFramework/JetBrains.ReSharper.TaskRunnerFramework.EXE.
LOG: All probing URLs attempted and failed.

2)

*** Assembly Binder Log Entry  (2/15/2012 @ 15:27:52) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable  C:\Program Files (x86)\JetBrains\ReSharper\v6.1\Bin\JetBrains.ReSharper.TaskRunner.CLR4.MSIL.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: User = LOGIC\Blake.Grant
LOG: Where-ref bind. Location = C:\Users\blake.grant\AppData\Local\Temp\covy2wfp.hd5\kvwwoexo.4o2
LOG: Appbase = file:///C:/Code/Playground/NUnitExtensibility/SimpleTests.2.6/bin/Debug
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = C:\Users\blake.grant\AppData\Local\Temp\covy2wfp.hd5
LOG: AppName = SimpleTests.2.6
Calling assembly : (Unknown).
===
LOG: This bind starts in LoadFrom load context.
WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load().
LOG: No application configuration file found.
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Attempting download of new URL file:///C:/Users/blake.grant/AppData/Local/Temp/covy2wfp.hd5/kvwwoexo.4o2.
LOG: All probing URLs attempted and failed.

If there is a workaround for this problem I'de love to try it as I'm relying on new features in NUnit 2.6 and would like to still use R# to run tests

Thanks!