[OBSE "Couldn't inject dll"]

Doesn't seem to be working, sadly. Repeats after each time I attempt to re-launch.

[OBSE "Couldn't inject dll"]

I've done some research on this previously, but that came up with nothing. I'm running Windows 7 Home Premium, I can confirm it is not my Anti-Virus software, mods clashing (I can get to the menu just fine and start a new game with no issues; aside form mods that requite OBSE), or a load order fault. It just seems OBSE doesn't like me or something. The issue is when starting obse_loader.exe, after about 10 seconds a pop-up message comes up saying "couldn't inject dll" with the only option being OK. (Yes I've also re-installed OBSE)

 

This has never happened to me before, re-installed Oblivion yesterday and played vanilla for a bit while waiting for the download servers to come back up, and now this.

Is anyone able to help me at all?