I've bought a new harddrive recently (IBM Deskstar 40GB), and have big problems with it. After installing I partitioned it, but it refused to partition as I wanted it. I changed it a bit, and that worked.
Well... not as I expected. I moved all mp3's (5 GB) to one partition, and most of the applications to another. I lost 80% of the mp3's and 99% of the applications. Whenever I opened certain folders or tried to double-click a file, the finder crashed.
Finally I copied everything back (I was so stupid to remove the original files immediately after moving them to the new partitions), and got the messages "input/output error" and (mostly) "bad address". Those files didn't copy properly of course.
I repartitioned everything, so reformatted the complete drive, and tried again. First time I formatted as UFS, second time as MacOS Extended. I copied files to the new partitions, and copied them back. The same happened (but of course without losing even more files

), so I think it is the harddrive. Does anybody have a similar experience? Should I return it to the dealer? Or are there any alternatives to try?