Hello all, Before I start - I know this has been asked before. Please keep reading ;-) Using Fedora 10. FLDigi 3.10 (from distro) and 3.11.4 (static binaries downloaded from FLDigi author's web site). I find FLDigi keeps wandering well off RX frequency. Yes, I have "Configure -> Modems -> Mail" set to "Use SweetSpot Frequencies". I have "Configure -> Modems -> PSK -> Mail -> Server Search Range" set to 10. I have "Configure -> Modems -> PSK -> General AFC behavior -> Acquisition Search Range" set to 10. I have CW, RTTY and PSK et al sweet spot frequencies set to 1000Hz. FLDigi has now drifted over 300Hz off freq. Depending on the kind of noise I get at my QTH, this could happen in a matter of minutes, and it will completely ruin its usability as a modem for 1000Hz. It also looks like it is TX-ing at the same point that it has drifted to! I know that the "Lk" button will fix this TX issue, but it won't stay in the "On" position after FLDigi has been restarted, no matter what I try. Help! Steve (VK2ZSZ).