QUOTE(ajvelez @ 08/03/06, 07:31 PM) [snapback]244210[/snapback]
If I can read files but can't write, is there a way to format an external drive so that it works with both operating systems?
Yup, FAT32 (I guess it's called something like MS-DOS under OS X). Not the best option performance-wise, but you'll be able to read/write from Windows, Linux and Mac OS without problems.
Hope that helps.