unable to create directory error

hello,
recently, i came across an error I never saw before. After rendering an image and pressing f3 and filling in a name followed by .jpg i get this error “unable to create directory”. can anyone tell me wha i’m doing wrong?

thx in advance and greetz,
Fritz.

Are you using Linux ?

Might be a permission problem like you’re trying to access a folder owned by root if you’re using Linux.

nope i’m using windows xp home edition. I never experienced this error with previous versions of blender. I really have no clue what is going on.

Greetz, Fritz