I'm facing some problems with Canon 50D RAW files.
I did some googling and realised that CS2 is unable to read 50D RAW files, due to the Camera Raw plug-in. I downloaded a CS4 trial version, with Camera Raw Plug-in v5.0 but it is still unable to read.
Also, when on Photomatix, the RAW files will produce an erroneous merge.
Anyone else out there facing the same prob? Any solutions?