Disclosure of an election computer glitch that could drop ballot totals for entire precincts is stirring new worries that an unofficial laboratory testing system failed for years to detect an array of flaws in $1.5 billion worth of voting equipment sold nationwide since 2003. Texas-based Premier Elections Solutions [formerly Diebold Inc.] last week alerted at least 1,750 jurisdictions across the country that special precautions are needed to address the problem in tabulation software affecting all 19 of its models dating back a decade. Voting experts reacted skeptically to the company's assertion that election workers' routine crosschecks of ballot totals would have spotted any instances where its servers failed to register some precinct vote totals when receiving data from multiple memory cards. Like nearly all of the nation's modern voting equipment, Premier's products were declared qualified" under a voluntary testing process overseen from the mid 1990s until 2005 by the National Association of State Election Directors. Computer scientists, some state officials and election watchdog groups allege that the NASED-sponsored testing system was a recipe for disaster, shrouded in secrecy, and allowing equipment makers to help design the tests. As a result, charged Susan Greenhalgh, a spokeswoman for watchdog group Voter Action, the systems on which Americans will decide the race between Barack Obama and John McCain in November are "scandalously flawed"' and "the integrity of this election is in question."