Sigma DP2 issue

[Herman]

Hi, today I took pictures with my DP2 which was updated this morning with firmware version 1.05.
All images are too dark, dial

setting P.
How to solve this issue?
Tips and replies are welcome, thanks in advance.

 

[nippa]

I don't remember any difficulties when I updated my DP3 but I did spot this on the upgrade site

Once you finish the firmware update of DP1 Merrill to Ver. 1.03 or of DP2 Merrill to Ver. 1.04, or if your camera is DP3 Merrill, it is necessary to install Sigma Photo Pro 5.5 to develop the RAW images

Could that be an issue.? I'm also using SPP v6