Audio :: New USB Desktop Speakers - Can't Properly Control Volume

I recently purchased the Polk Hampden Speakers. For some reason, the manual volume control built into the speakers themselves doesn't affect the volume level. The only way I can adjust the volume is by using my computers volume control software (the little white speaker in the bottom left of Windows 7/8). I am fairly certain the hardware volume control isn't broken, because when I first plugged them in ( a week or 2 ago) they worked fine. It wasn't until I disconnected/reconnected everything from my computer when I installed a new desk that this problem started.

However, even the software volume control isn't working properly either. In particular, when I go into the mixer to see the volume levels for each application, if I adjust the main "Device - speaker volume" it won't alter the specific applications volumes accordingly. Like, I can reduce the main - device speaker volume all the way to zero (not muted) and the applications will still have the same volume level as they did before I adjusted it.

Finally, even my keyboard bindings to the volume control are whacky. I can still adjust the "main - device speaker" volume with the keyboard, however since this "main - device speaker" volume no longer influences the individual application speaker volume level it is pointless to do so.

I have tried disabling all other sound drivers/sound hardware, but it doesn't work.

I have tried uninstalling/re-installing the USB drivers for the Hampdens which didn't work.

I have tried restarting the Microsoft Services responsible for audio output recognition which didn't work.

I have tried downloading the audio drivers specific for my motherboard, but that didn't work.

Additionally, applications sometimes don't recognize the speakers. If I start the application before turning on the speakers the application won't recognize the speakers unless I cycle through the speaker output modes (the little button under the volume knob) and get back to USB mode. Otherwise, I have to completely restart the application. This issue isn't as big of a problem as the manual volume control not affecting the volume output of the speakers.

I have tried uninstalling all my audio devices/drivers, but this doesn't seem to work. They just instantly re-install it appears.