Have you ever wondered why Democrats hate talking about voter fraud? It may be because they know their party has no morals, and will do anything to win, even if they have to cheat to do it.
As a former PC (Precinct Captain) in my state, I had access to the voter roles for my county. The residence next door to my home had changed hands 10 years prior due to the passing of the homeowner. Not only was the gentleman still on the voter rolls, he was listed as an active voter a decade after his passing. He was a registered democrat.
When canvassing the precinct, there was a fairly good chance that someone in the house was registered incorrectly (no longer in the house, switched parties, bad name). Keep in mind that I was only talking to republicans and independents.
My conclusions - government information systems may not be the most advanced or the best, sometimes clerical errors are the reasons for voter registration errors. Sometimes true voter fraud is taking place, I saw the evidence of it directly. Sometimes people are lazy or failed to update/change their registration.
My solution - require state issued ID to vote, require your ID to be verified against/match your voter registration, require your vote to be accomplished in person, eliminate early voting. (only exception made is for government and military can vote from overseas/out of precinct)
In my opinion - if you are opposed to the above, you are OK with an increased level of voter fraud and/or vote inaccuracy. You may have a variety of reasons for opposing it, but you are trading voting accuracy for your reasoning.
Note that I am not coming at this from a partisan position, so don't put intent in my mouth based on your particular paradigm. I am interested in accurate and fair voting practices; the current system is neither in most locales. The only debate is how unfair or how inaccurate it is.