I can no longer capture media. When I start to capture the window opens and says allocating disk space and stays like that. I've thrown away the preferences, but I can't capture. It used to work fine though. Has anyone ever seen this?

I have version 4.5 on an ibook, but I know it can work on this machine.
thanks

Have you seen our "stickies" ?

http://www.dvinfo.net/conf/showthread.php?t=49838
http://www.dvinfo.net/conf/showthread.php?t=44189

4.5 has a number of issues with newer versions of MacOSX and Quicktime...