Day of Defeat Source: Problem with automated fire

[Zomgbie]

Hello there fellas!

I'm having a strange but anoying problem concerning the automated fire on some weapons. While playing with e.g the Thompson SMG, or BAR; The bullets tend to kind of lock, breaking of my awesome spray of doom. To be more exact, this only happens when fireing on enemies.

Example #1, fireing on a wall:
I equip myself with the Thompson gun, aim at an evil looking wall, and pull the trigger(AKA, pushing down the mouse button). The whole clip goes off, nothing strange or anyoing here!

Example #2, fireing on an enemy:
While running around looking for trouble, equpied with my Thompson, i find my self looking at the face of an enemy! I pull down the trigger hopeing to put a spray of bullets in my nemesis, but wait! Only X (X is a random number, sometimes it's 1 or 2, sometimes it can be 10 or 15, but never the whole clip!) ammount of bullets got fired! To keep shooting at my enemy i have to let go of the trigger (Release the mouse button) and wait for a few seconds, before unleasing another failed spray of doom.

Needless to say, when playing a class that has automated fire i tend to end up dead.

Could anyone, please, shine some light on my problem?