Help with inner CV boot

[JohnD]

So I had the inner and outer CV boots replaced on my 2001 4.4 X5 a few months ago by my local indy. The truck has been back twice now for a leaking inner boot. Everytime I look under the car there is grease in the wheel well. All the parts used for the installation were from BMW and this is only happening on the drivers side. On real OEM they show two different types of boots, based upon the passenger side not leaking I would think the boots are fine. Any idea why it could be leaking? Could it be a bad gator?

KillCrap or Weasel any help would be greatly appreciated. It is going back into the shop on Wednesday