Buffer Overflow???

I hope someone can help me with this. When using my scanner to read scantron forms, the scanning stops and an error pops up on the computer saying "cannot be scanned - comport received buffer overflow." Does anyone have any suggestions on what to do about this?

 

Found the solution to the problem, but I'll post in case anyone was interested:

All I did was go into com port 2 in device manager, properties, advanced, and turned the "receive buffer" all the way down. Scans in slower, but it seems to fix the errors.