I created a database (table) that currently holds 42 records.  I then created a form based on that table which I can use to modify existing data. In that form, I can use the "Find Record" icon to search for information, and it will return the appropriate record for the first 39 records.  However, if I search for any information unique to records 40 and above (including searching the ID field for 40, 41, or 42), it returns the message "No records corresponding to your data found." Searches for information common to records less than 40 and those in records at or above 40 will only return records less than 40 containing that data. 

When selecting the "Data Sources (F4) tool and selecting the appropriate table, the summary at the bottom shows only 40 records until I actually scroll down to the last records in the display, when it corrects itself to the true number (42).  This still does not enable return of the records above 39 using the Find Record icon.