State officials remain just cautiously optimistic even though Minnesota's unemployment rate dropped to six-point-nine percent in January -- the lowest level in more than two years.  Steve Hine with the state Department of Employment and Economic Development points to positive signs but adds areas of weakness remain.  Hine says the run-up in gasoline prices is "certainly not a good development" and will have a dampening effect on job creation if it continues.  January job numbers show the private education and health care sectors gaining the most jobs.  But the roughly nine thousand jobs added across all sectors were partly offset by 67-hundred jobs lost in trade, transportation and utilities.