profile double up

[pigdog 2]

Help ! I love playing the game and can't resist playing on after my mates have logged out which ends up with me getting killed and feeling bad that they have to come get me from the coast or wait while I make it inland. wish I could have two characters, one to use with mate and another for my own folly. One mate suggested two accounts, so I set up another steam account on our other pc, bought the games, downloaded, patched and yep I gan play on that account. Came home to find pc in use so I started up my pc, no mates on so I logged into steam on the new account fire up the game no worries theres the other character,played for a while , logged out, next night there were mates on so I logged into steam on my old account fire up the game only to find that my old character has been replace by this new one from the other account ? Any Ideas how I play from one pc and be able to switch from account to account so I can have two characters running ? I also tried having one account running on one pc and the other account running on my pc but both could't join the same serveras they are now the same character,