I am using the 2.1 Windows standalone exe. 

I have a dd image of memory from the subject operating system and when I try to use pslist with the Win2008SP1x86 profile I get the following errors:

Traceback (most recent call last):
  File "<string>", line 185, in <module>
  File "<string>", line 176, in main
  File "C:\volatility\build\pyi.win32\pyinstaller\vol.pkz\volatility.commands", line 111, in execute
  File "C:\volatility\volatility\plugins\taskmods.py", line 138, in render_text
  File "C:\volatility\build\pyi.win32\pyinstaller\vol.pkz\volatility.win32.tasks", line 72, in pslist
  File "C:\volatility\volatility\plugins\overlays\windows\kdbg_vtypes.py", line 40, in processes
AttributeError: Could not list tasks, please verify your --profile with kdbgscan


When I try to verify my profile with kdbgscan I get the following for all profiles:

 **************************************************
Instantiating KDBG using: Kernel AS Win2008SP1x86 (6.0.6001 32bit)
Offset (V)                    : 0x8193ec90
Offset (P)                    : 0x193ec90
KDBG owner tag check          : True
Profile suggestion (KDBGHeader): Win2008SP1x86
Version64                     : 0x8193ec68 (Major: 15, Minor: 6001)
Service Pack (CmNtCSDVersion) : 1
Build string (NtBuildLab)     : 6001.18000.x86fre.longhorn_rtm.0
PsActiveProcessHead           : 0x81954990 (0 processes)
PsLoadedModuleList            : 0x8195ec70 (0 modules)
KernelBase                    : 0x81847000 (Matches MZ: True)
Major (OptionalHeader)        : 6
Minor (OptionalHeader)        : 0
KPCR                          : 0x8193f800 (CPU 0)
KPCR                          : 0x803d1000 (CPU 1)

Any help would be greatly appreciated.

Jon