[ThePythonicCow]

A file of 700 Mb is certainly not too large for ext3. To find your download file, try doing:

find / -mtime -1 -size +500000

at a shell prompt, which should find any file modified in the last day of size 500Mb or larger. It will take several minutes, or more, depending on the size of your file system and speed of disk.

Or perhaps try downloading some other small file, and notice carefully as you do so where the Firefox download dialog says it is putting the file. Good chance your linux .iso is in that same directory.

Or use wget or curl to download the file, instead of your browser, so you have more control over, and visibility into, what is happening.

[Echo Talon]

thanks for the help.. it didn't work... maybe firefox deleted it or something? i'll DL it again with windows... firefox said downloading to desktop... i download a small file and it went to the /tmp folder(it was supposed to go to the desktop)
maybe the /tmp folder has a size limitation or something?