Developed my first roll since coming to France yesterday, and noticed that the 2 rolls of Kodak 400TX yielded results that are a little cloudy. Googled the internet and it DOES seem that expired fixer will give you cloudy negatives. The fixer I have is about 1-2 years old and its been in the original bottle since then. According to the instructions on the bottle, the fixer will stay fresh for 6 months in the bottle and 1 year in an airtight bottle. Looks like I will have to go out this weekend and look for a new bottle of fixer! I have at least 10 rolls of B&W backlogged for development.