Can't recall printer settings dialog from PS Print dialog

Question

I am looking for toubleshooting ideas for my problem - I would like to avoid reinstalling CS at this point.
Problem:
If I try to print to my remote Epson printer (3880 installed on another Windows 7 computer and accessed as shared printer) and if I click on the Settings button in PS CS4 Print dialog box, I got the following error: "Could not complete your request because an error occurred while printing"
What I have:
Two computers. One has Epson printer connected through USB, the other prints to it via network. Both are Windows 7 64 bit, latest drivers
What I found so far:
The printer works fine from LR3 and Illustrator CS 4, only Photoshop fails to print
Other printers, including network printers work fine from Photoshop
This started  to happen after installing CS5 tryout, but I am not positive it this is the cause
The printing worked at some point
If I create PSD file with this Epson printer specified and open it on another computer with PS (which otherwise prints to this printer normally), I get the same error.
What I did so far:
Reinstalled the printer on the PS machine
Reset PS preferences file
Thanks

Answer 1

Unfortunately, I don't remember how I fixed the problem. I think there was some mixup because I used the printer as USB once and via network later. I don't use PS on that PC anymore, but I think I had to use the printer as USB to make it working. I also think the CS5 tryout caused some issues.
So you can try this:
- If you use it as networked, try installing the driver again as USB or vice versa
- If you use CS4 and have CS5 tryout, uninstall CS5
Not sure if it helps, but I don't have anything better, sorry.