This is a bit difficult to explain, but here goes...

When playing cfs1 on the zone, after playing several games, my display setting changes.  It's as if the "zoom" setting changes ie. it is magnified too much??  This makes it impossible to keep anything in your gun sight.

When I try to zoom out, it goes too far, and the screen tends to wrap around in a large arc/circle. 

Whatever zoom setting I use, I just can't get it back to the default unless I reboot.  Any ideas?

I was also thinking that the frame rate could be changing because of a memory issue(??)... but would that cause those sort of problems?

I'm using an old Celeron 500 with an ASUS TNT2 32bit display adapter (128 RAM).