I just received my Digital Rebel XT last week -- and so far I am loving it!!!

Besides the camera I also got additional lenses (Canon EF 50/1.8 II ø 52 mm and Canon EF 55-200/4.5-5.6 USM II) as well as an additional battery.

Last week I shot a bunch of pictures and my battery ran out. I had previously charged the additional battery and put that in the camera. In the meantime I recharged the original Canon battery. -- Here comes the weird thing... both batteries no longer seem to be working or they are able to take 1 picture and then the camera dies on me... not sure if this is the problem or maybe something else is going on with the camera....

Anyone else have this problem, anyone else hear of this problem, anyone have any suggestions....

I also receive an error 99 when changing lenses to the Canon EF 55-200/4.5-5.6 USM II and because taking out the battery doesn't seem to help I am finding it all quite odd.

Thanks for any help/suggestions....