The State of Electronic Voting In the 2008 US Elections
Geek Satire writes "Voting works only if you believe your vote gets counted accurately. The 2008 US elections have avoided many well-known problems of the 2004 and 2000 elections, but many problems remain. O'Reilly News interviewed Dr. Barbara Simons, advisor to the Federal Election Assistance Commission, to review electronic voting in the 2008 US elections, discussing the physical security of storing and maintaining election machines, the move from electronic back to paper ballots, and why open source voting machines don't necessarily solve problems of bugs, backdoors, and audits."
My vote was paperless. I have no idea if my vote was recorded properly or if it wasn't manipulated in some way after the fact. The only indication I have that it wasn't was the fact that the race was really close and several republicans lost seats largely due to "straight ticket" voting. (many people are hating republicans you know)
One thing will help stop some election fraud -- aggressive criminal prosecution.