Can't run script from current directory

Hi there,

I already used the search function, but I couldn't find a working solution. My problem is that I can't run any script in my current folder. Also I "Current Folder" window shows everything greyed out. But if I cd to a path which I included in the search path manually the "Current Folder" window will display everything in colors again. The command "which" finds my file however. So what can I do besides of adding everything into my search path? Why is my current directory not in it?

EDIT: I could run scripts easily yesterday. I just change the way my current folder is mounted in Ubuntu. Also I noticed that, I actually can run preexisting scripts, but not newly created ones.