A handful of recent threads on Apple's Support Discussion forums - backed up by our own testing - indicate that Snow Leopard suffers from a bug that prevents users from opening multiple recently downloaded files simultaneously. Upon attempting to open a group of downloaded files (that have not been previously opened) only a portion of them open in whatever application owns them; no error message is displayed. If all opened files are then closed, and opened as a group again, one more file will open than on the previous attempt. Each successive attempt to open the same group of files will result
in one additional file being opened, until they are all opened successfully.
Variations in the reports of the bug do exist. Some users found that the issue surfaced only after attempting to open a certain number of files. Others found that no specific threshold existed, but that any attempt to open a group of files would succeed for only about 60- to 75-percent of the total number of files.
Most users in the forums complained about experiencing the problem with imag