Dr. Steve Jobs or: How I learned to stop worrying and love my bombed workflow

Note about me - I work with video. I'm using Final Cut Pro 5.1.2 to cut, but I often review several quicktimes at a time coming off an ftp in Quicktime player.

Both of these applications were updated recently.

FINAL CUT PRO 6:

I found myself in a situation where I needed to load one of my FCP5 projects on a mac running FCP6. That's when the fun began. For some reason, exporting quicktimes from the FCP timeline caused some clips to substituted for others. That is to say that they appear and playback fine while in the timeline, but as soon as you export to another format it's as if FCP gets confused and decides to make up its own edits - HEY! Who's the Editor here? Furthermore, the fields seem to be out of alignment when exporting an MPEG2 for DVD. I'm sure this is just a glitch when using a FCP5 project. I do intend to upgrade to FCP6 once I can afford to buy a new Mac that can handle that program.

QUICKTIME 7.2:

More recently I mindlessly upgraded my Quicktime to 7.2. I haven't noticed any incompatibilities yet with websites as some users have mentioned on the Apple Forums, but I have noticed a huge difference in the way Quicktime hides itself. As mentioned earlier, I often review several QTs at once, hide the ones I want to review again, closing the ones I don't and moving on. With Quicktime 7.2, closing a QT brings up the last QT you hid as opposed to the next QT in line to be viewed. This is highly irritating as it means I am constantly re-hiding QTs that I've already reviewed.

Anyone else having this problem?