When opening drawings from our network storage, they take more then a couple minutes to open. Normally they only take a couple secconds. I tried transfering files and they transfered from my computer to the server at normal speed (1Gbit). The computer has Dual P4 Xeon 3.0GHz with 4GB RAM.
Also if I run a script from that same location it has the same slow down. Once the drawing is open it runs fine and saving works fast like normal.