European Factors to Watch-Shares set to halt rebound

PARIS, April 17 (Reuters) - European stocks were seen opening flat to slightly lower on Thursday, halting the previous session's rebound as disappointing results from Google and IBM eclipsed dovish comments from the head of the U.S. Federal Reserve. Financial spreadbetters expected Britain's FTSE 100 to open flat to up 1 point, or 0.02 percent higher, Germany's DAX to open down 3 to 4 points, or 0.04 percent lower, and France's CAC 40 to open down 1 to 2 points, or 0.05 percent lower. Sh