A commercial truck rollover Tuesday morning along the eastbound lanes of Interstate 84 about 12 miles west of Arlington resulted in the driver being taken to a hospital.  According to the Oregon State Police, the accident occurred at about 5:10 a.m.  A 1997 Peterbilt truck pulling a semi-trailer loaded with potatoes was traveling eastbound on Interstate 84 near milepost 126.  According to the driver he swerved to miss several deer that were on the road and lost control.  The truck and trailer crashed into the guardrail on the right shoulder and overturned, spilling the load onto the shoulder.  The truck and trailer came to rest on the guardrail partially blocking the right eastbound lane.  The driver appeared not injured but was taken to an area hospital for a medical evaluation.  His name has not been released.  About 230 feet of guardrail was damaged.  No injured or dead deer were found in the area.