master/detail refresh problem


I'm using D5 and MSSQL Server 6.5. I've found a new problem. I have a
master-detail relationship, and when I'm navigating trough master records,
detail records refresh for a while and after that some of the DBEdit
-fields don't refresh. There is no logic in refreshing. Some fields
refresh, some don't, and after few moments all the DBEdit fields refresh

Is there some options in BDE I should know, or what?