We have tried to repeat your problem in our lab using PickMaster 3.10 as well. We have no problems importing the line.
We understand that you receive the problem when you choose Import Line… from the menu. The problem may be that you are not allowed to modify the registry of your laptop.
You may perform a simple test to see if this is the case.
Create a new line on the laptop
Save the new line
Exit PickMaster and start it again
Choose edit line from the menu
If this fails, there is a problem with your registry. Then please contact your system administrator.
You may also verify the registry:
HKEY_LOCAL_MACHINESOFTWAREABBPickMaster2.0Line
If this is completely empty, no line has been created/imported or the reigstry is write protected.