We have Peachtree Premium 2007 with multi-user license (5). It is hosted on a peer-to peer network and we can successfully connect from another PC. When I try to access the networked company from a third PC I get the following error message: 'You cannot use Peachtree right now because the serial number(s) you have (XXXXXXXX) are already in use by the maximum number of computers. If you feel you have reached this message in error, wait 1 minute and then try logging on again.' I have tried the following: 1) Rebooting the third computer and the computer the company files are on. 2) Deleting all the *.lck and *.ptl files from the company folder.
On the lower half of the About Peachtree Accounting window, locate the lines Serial Number and Registered Tax Service. If Serial Number: displays your serial number, it indicates your Peachtree Accounting software is properly registered. If the Registered Tax Service: displays 2010, then you are already registered for the 2010 Payroll Tax Year.