[RaaaghCats]

Edit - Sort of found out the problem - When I took off the cable to reverse the drivers (Left driver to right cable, Right driver to left cable) so that I could wear them down and not over ear, One of the connectors in the left cable lost part of the gold connector.
 
  The 2 connectors are surrounded by some sort of gold thing and one of them has become stuck in the driver itself meaning the only way I can fix this is by either using a new cable or getting a new IE8.

 

[CEE TEE]

Dunno, I switched cables and wear mine down without any issues.  I just don't like the over-ear thing... 

 

[justhandguns]

I tried swapping the L/R several times, there was no problem at all.
 
Maybe it's a bad contact in one of the sockets?

 

[RaaaghCats]

Hmm it seems strange that it works the correct way but not swapped 

 
  So at least it's not faulty in general

 

[Sayajin]

Must be a bad contact in left plug. Try instead make it so that there is a very small gab between cable and socket. (not pushed all way down)
Had same issue for a while.

 

[RaaaghCats]

Quote:

Must be a bad contact in left plug. Try instead make it so that there is a very small gab between cable and socket. (not pushed all way down)
Had same issue for a while.

 
  Thanks I had a closer look and worked out what has gone wrong exactly (Updated first post)
 
 
 
  Does anyone know if this can be resolved with the warranty at all?  I have the original receipt and about 1 year 10 months of Sennheiser warranty left still - Would they send a replacement cable if I contacted them?