Warning CS4 CS5 and CS6 Photoshop Action Users

Question

Adobe introduce the Adjustment Panel in CS4 and included two option that you should NEVER CHANGE from their default setting.  For if either or both are change from their default settings some actions that add adjustment layers will fail to work properly. They may or may not produce error pop-ups.
I have been trying to get this fixed for a couple of years now.  The other day I received an e-mail from an Adobe programmer informing me that he had been assigned the task to fix the problems I've been having.  He included information he was considering.  It was clear he did not fully understand the problems and that keeping one of the options would make it impossible to maintain compatibility with previous versions of Photoshop.  I wrote two e-mails explaining the problems and a third detailing what the problems I saw with what was proposing.  He wrote back the all he wanted to do was to work on part of the problem not the whole problem. I wrote a fourth note but Adobe is back is stealth mode.
The two options in the Adjustment Panel fly-out menu are:
"Add Layer Mask by Default" checked by default.  This is how Photoshop always worked prior to CS4 there was never an option not to add one so nothing was ever recorded whether or not a layer mask was to be added they always were.  Changing this will make Photoshop not backward compatible.
"Clip to Layer" not checked by default.  There has always been an option to clip adjustment layers to the previous layer. So when the option is used the action recorder records the option "With Clipping Mask" in the make adjustment layer step.  When the Adjustment Layer is not clipped the option "with Clipping Mask" is not recorded. In the past these recordings played back correctly and still do if the Adjustment Panel fly-out option "Clip to Layer" is not checked.  However if Adjustment Panel option is checked even though is was nit when the action was recorded for the option "With Clipping Mas" is not recorded Photoshop clips the layer because of the Adjustment Panel current Option setting. That could be fixed. The current option setting has no meaning in this context in fact the Adjustment panel may not have even been used to recode the Make Adjustment Layer step.
Here is a link to a simple action recorded in CS6. It opens a new default size document add an Levels Adjustment Layer deletes the layer mask and then clips the adjustment layer to the previous layer.  The Action will play correctly in all versions of Photoshop prior to cs4.  It will fail in CS4, CS5 and CS6 if either or both of the Adjustments Panel fly-out options are changed from their default setting.  http://www.mouseprints.net/old/dpr/CS6AdjLayer.atn

Answer 1

Generally, you would have got the option to remove the old versions.  However, you can uninstall the old versions but you should do it from Windows Add/Remove modules in the Control Panel so that it doesn't remove the common files from your machine.
If you are not constrained by disk space then the best thing is to leave the old programs on the system until you are familiar with the new features of the upgraded program.
I have renmoved the old programs from my Windows 7 because I wasn't using them.  These days I use "Corel Paintshop Pro X5" and "Corel Draw Graphics Suite X6".
Photoshop is for something I need to test for my colleagues who are not familiar with certain features in Corel so I tell them how to do it in PS CS6.
Hope this helps.