There isn't any problem when i run the program using the MS access 97 file format . But after converting the ms access file to MS access 2000, and i run the program, there is an error saying "Run time error '-2147467259 (80004005)': Unrecognized database format 'c:\windows\desktop\ADO\db1.mdb'. May i know this problem is due to what reason ???

For your information i am using ADO to connect to the access database ..