mapcycle.txt/maplist.txt getting erased on map change

[Viper2026]

I have a very strange problem, each time my server changes maps, if I don't set my mapcycle.txt and maplist.txt files to read-only, they will be cleared on each map change. The file still exists, but when I open it, it will be totally empty. I am running windows s2k3 with mani, eventscripts, and es_tools. I am wondering if anyone has heard of anything like this occurring before or knows how I might figure out what is causing it?

[skeletor]

first thing always to try.. is removing all plugins. I haven't seen this so my first thought would be a goofey plugin or something.