When taking bulb shots with my 350D recently, the camera won't take anything over 30 sec. with the IR remote. Under 30s, the shot will show OK on the preview screen and everything seems OK. Over 30sec., and the shot won't show on the screen and the #of shots left will flash, even with the camera turned off. The only way to clear the display is to remove the battery. I used to take 5-10 min. exposures this same way, but this just cropped up a couple weeks ago mysteriously. Just wondered if anyone else has run into a similar situation...??