A driver was injured when her car ended up slamming into two trees in a traffic mishap, in western Forest County.      And, State Police say that Kathryn Krask of the Tidioute area was taken to U-P-M-C Northwest Hospital for treatment.     Krask had been driving a car on Route 62, in Tionesta Township.     The vehicle veered off of the highway and first hit a guardrail.     The car then stuck those trees.      The State Police also note that the involved vehicle caught fire and became engulfed in flames.      This mishap occurred on Thursday evening.