MC
When you have FLEXCOLOR 4.8.3 installed , your firmware level should be R233 .
For FLEXCOLOR 4.8.4 the firmware level is R237 .
When you do not experience any trouble , I would wait for PHOCUS to be available .
Otherwise go to HASSELBLAD.com and download the latest FLEXCOLOR version , which is 4.8.4 . With the firmware beeing at R237 , you will only have 60 images for a 2GB CF card , instead of 87 with R233 .
I am at FLEXCOLOR 4.8.3 (R233) and will not upgrade to 4.8.4 , but wait for PHOCUS to be available .