Could be a couple diff things. Maybe you have your register sorted by something other than date. Click the DATE column heading to sort by date. Or maybe the register is filtered. Or maybe you opened an old backup copy instead of your current file.
Filtered register? Unexpected register sort order? "Missing" data?
Could it be that your account register in Quicken is
- filtered to show only certain transaction types or - sorted in some unexpected way or - limited to a certain Date Range or - perhaps only showing the results of a search instead of "all transactions"?