I have an ISA server installed in Cache server only mode as a forward proxy/cache server. After switching the logging to use an SQL server database, the reports are not always showing any data. I made the change a week ago and for the first two days it worked OK, then the reports showed no data for two days and then it worked again for a couple of days and now it is not showing any data again! Has anyone else had this problem and/or got a solution?