Wierd Error with some scripts.

[Disease]

Seem to be having a few weird problems with scripts at the moment:

 

*Sometimes Login Scripts will run and map drives, sometimes they wont, you can resart the machine and they will load, it's really as random as that.

 

 

*Printer Scripts somtimes they run sometimes they don't One day you will have printers one day you won't.

 

The randomness of this is really beginning to wind me up as there is no pattern to it at all.

 

Anyone had a simillar problem or any idea what could be causing this? I would not have thought it's a virus as we are fully up to date and we scanned every machine during the Half Term break. IT can't be network latency as we have upgraded the curriculum network to a 2 gig fibre backbone with only an edge switch between machine and the layer 3 Core Switch.

 

Stumped I am.