temp_xxx.dat files in /temp/ filling up hard drive

Anyone out there able to answer what the temp_xxx.dat file in the SE5/temp/ directory are for?

Right now when we process turns more and more of them keep getting created. The last turn I tried to process is still going (may be stuck in a inf loop from the look of things) and I have run out of HD space... Looking around I found this directory had 166 files taking up 32Gb of space (40Gb drive).

So the question is do I need to have all these files sitting there till the turn is complete or can I delete the old ones once SE5 creates a new one. I can set up a task on the server to check this directory and prune the files once more than 5 or 10 show up but not sure if this will break anything.

This is a Email game with 4 player + 4 computers.

Thanks,
Wire