you fell asleep in the chatroom buddy
I will repeat here to you :
<+LaserCo> MarioMaster|AFK you there?
<+LaserCo> sombebody somewhere replied to you that you should heat the laser head up, I never resorted to it yet I have a friend that would completely remove the LASER 'head' from the enclosure and throw it in the oven for many many hours
<+LaserCo> Mario with the tube completely removed electrically from the Head you can run HV DC thru it from a neon sign transformer for a few days, you would need a variac to get the voltage to where it is ionizing the laser tube without frying it
<+LaserCo> Mario I said HV DC, meaning you will want to have a DIODE to turn it to DC.. also running it in reverse may help also in your situation
<+LaserCo> REverse HV DC flowing thru it... Hope you read this!
<+LaserCo> better yet and a first step if you have a variac would be to put the variac BEFORE your PSU and attempt to start the tube using higher or lower AC Input voltage to the PSU