I do Portslade to Reigate, its absolutely awful. Going to look to Drive, however thats probably got a whole world of problems of its own. Liverpool to Victoria is at least one train, Id kill for that right now.
I travel to Reigate daily on the trains, It is utterly horrendous, getting to and from work, I cannot remember the last time trains ran on time or I didnt have a problem.
I have no idea about the problem with the signals, but for me its got to be shit quality equipment.