Hello all,Today i was flying YBCS to YSSY in the 737-800 Qantas on Vatsim with FSINN and there is a big problem when i get to 22000 FT the Temp is +50 and i don't know how to stop that. Please help !!

Dont use FSinn weather, causes issues and is a well known bug. Set weather to CAVOK on FSinn CP, disable in settings and use somethign like FS open clouds, which is a awsome weather engine.

OK thanks :) would REX weather do the same job ?

REX or Activesky will do the job. I would not recommend the CAVOK part suggested for FSINN. All you have to do is make sure FSINN weather is disabled and start REX or Activesky before you depart.