Performance Monitoring not working on windows app?

Hey everyone. I have deployed the most recent windows app to my search heads, indexers, and the TA to all of our windows server (all windows 2008 server). In the TA I have added a local/inputs.conf file which contains the following:

...
###### Splunk 5.0+ Performance Counters ######

## CPU
[perfmon://CPU]
counters = *
disabled = 0
instances = *
interval = 10
object = Processor

## Logical Disk
[perfmon://LogicalDisk]
counters = *
disabled = 0
instances = *
interval = 10
object = LogicalDisk

## Physical Disk
[perfmon://PhysicalDisk]
counters = *
disabled = 0
instances = *
interval = 10
object = PhysicalDisk

## Memory
[perfmon://Memory]
counters = *
disabled = 0
interval = 10
object = Memory

## Network
[perfmon://Network]
counters = *
disabled = 0
instances = *
interval = 10
object = Network Interface

## Process
[perfmon://Process]
counters = *
disabled = 0
instances = *
interval = 10
object = Process

## System
[perfmon://System]
counters = *
disabled = 0
instances = *
interval = 10
object = System
...

This is more or less the stock file, just with all of the inputs enabled. I have this deployed to all of our windows servers, but none appear to be sending performance data. Log data is coming in ok, but nothing for performance. All servers are using the v5.0.3 forwarder. I have also tried modifying the inputs.conf file to use the older formatted v4 stanza names, and a separate perfmon.conf file, and I simply cannot get this to work.

I have to use the forwarder because our splunk indexers and search heads are all running linux. Any advice would be very much appreciated on getting this running.