Try the Immediate Window rather than Output?
I generally change the level on the fly around the query I want to see in more detail to avoid having to trawl through trace information I don't need:
' Store old level
dim OldLevel as integer = SD.LLBLGen.Pro.ORMSupportClasses.DynamicQueryEngineBase.Switch.Level
' Change level
SD.LLBLGen.Pro.ORMSupportClasses.DynamicQueryEngineBase.Switch.Level = TraceLevel.Verbose
' Run query
BookingListDynamic.GetMultiAsDataTable(fields, results, 0, sorter, filter, Nothing, True, Nothing, Nothing, 0, 0)
' Reset trace
SD.LLBLGen.Pro.ORMSupportClasses.DynamicQueryEngineBase.Switch.Level = OldLevel