Hi there. You\'re talking about the Monitor Serial Number, correct? Or are we talking about both the Monitor serial number and the Computer serial number? Because while the Monitor serial number may be shorter than what\'s on the monitor, the PC serial number should not be.
NEWT, and other software like it, grabs the Monitor\'s Serial Number from what is stored in the monitor itself. Many times this number may be shorter than what\'s stamped on the outside of the monitor due to a current limitation of what monitors can store (called the EDID specification). Although the numbers may be shorter, the prefix of that number should be the same on that particular monitor model.
For example, you may have 2 Dell monitor\'s that show the following:
X3P432V9A
B4P321C2B
While the true serial number on back of the monitor is:
D17L122X3P432V9A
D17L122B4P321C2B
The prefix D17L122 should be the same for all monitors of the same model. Having the end part (the suffix) and the Model (also provided in NEWT) should be enough to uniquely identify that monitor to the manufacturer for any purpose.
Although many lease companies use the entire serial number, it is simply unavailable to the computer (not stored in the monitor) and therefore unavailable to NEWT and software like it.
As far as the PC\'s serial number, we haven\'t seen instances where it is shorter than the one listed on the computer itself, especially on Dells. May we ask what model of Acer is not showing the entire PC serial number?