Problem with SD_Card_Path

[duebelpapst]

Hello,

after I have used GPX 1.3 for a long time, I updated to 2.5.2.
Now I have a problem with SD_Card_Path.
The gpx.ini is locaded in the same folder as gpx.exe.
Under 1.3 this works, sd_card_path=//ctc/Plot, this is the SD, after the update the x3g file is not made.
I also thried sd_card_path=C: and sd_card_path=C:\Temp and so on.
If I coment , that means that I put an ";" in front of "sd_card_path", the x3g file is made, but stored in the folder as the gcode is stored.

What is my mistake?

Regards,
Stefan