MS Access 97 VBA Question

I import a table (called ALLDUE) from a disk several times a month. My VBA routine first renames the ALLDUE table adding the day number (ALDUE6 etc) and then imports a new ALLDUE table. I want to write a routine which will erase all tables ALLDUE1 to ALLDUE31. I tried, but when there is no table my routine crashes (unable to find table) Can you help???