Trust your vote to a machine?

So apparently there is a problem with the electronic devices Travis County is using to record the votes of its citizens. This article from The Austin Chronicle reports that U.S. 5th District Court of Appeals has upheld a prior decision denying the Texas Democratic Party’s request that Hart InterCivic’s eSlate machine be fixed or taken out of circulation for use in elections held in Texas. According to the TDP, the Austin-based company’s machine has a glitch that will void the voter’s selection when selecting a straight ballot, as well as a selecting the name of a particular candidate. Another article I found indicates that the court’s reason for the decision is based on the fact that the fine print at the beginning of the voting process on the machines and the summarization at the end displaying the finished product of the ballot give the voter ample opportunity to vote effectively. A recount in Madison country brought light to this matter when an “inordinately high number” of ballots were left blank.
It seems pretty obvious to me that there is room for error here. The Texas Democratic Party is merely asking that a problem resulting in a discrepancy between voters and votes be mended. And I am left asking myself, “what on earth could be more important that solving such a pitiful problem?” Are they saving money by not doing so? Is one party actually gaining some kind of advantage with this? It doesn’t make sense. I’d love for someone to explain this one to me…... Anyone??