Having a problem with my fps in FNV. Yesterday I was playing and having a usual fps of 30-60 when suddently I noticed that I had a steady 60 fps (capped there with vsync) almost all the time, in and outdoors. I was surprised, as I don't remember doing anything more than changing between high quality and ultra quality settings to see the difference.
I also went to certain places where I remembered getting a 30ish fps with high and ultra settings, but this time it was a steady 60! This was with ultra 8AA&16AF maxed out.
Next day I boot up FNV and notice that I'm back to the usual 30-60 range again. I know I'm not giving much to go on, but do you guys have any ideas what's going on here?
RIG:
ATI Radeon HD 4890 - 11.9 drivers (latest)
AMD Phenom II x4 3.0ghz
4GB RAM
Realtek sound - latest drivers
Fallout New Vegas has the latest patch. I'm using Gamebooster and Fraps while playing.
Thanks in advance.