I also own the Toshiba PDR-M70 and moved up to the drebel. There are
well-known problems with the Toshiba. The main one is poor
auto-focusing in not-so-bright light. The flash is also anemic.
Shutter lag, characteristic of P&S cameras is also a problem.
However, it has razor sharp Canon optics. I have gotten some really
good pictures. They can easily be blown up to 8x10. Bottom line,
there is more likely something wrong with the way you ar taking
pictures.

Jim