Hi Victor,
I have some experience with dual monitors but at another location so I can't give any screen shots but dual monitor colour management is tricky and I've not a lot of experience, but this may be of help ....
The warning that Qimage is giving you is just telling you there is a discrepancy with what is set in Windows and what is set in Qimage. I assume you are using the HP monitor for Qimage so you should be ok with that. You can suppress that message.
Your screen shots seem to indicate that you do have the correct profile associated with the HP monitor.
However, what Q is telling you is that the WINDOWS default is the Samsung profile. The Samsung was probably the last one to be calibrated and the software will have set that as the Windows default.
Why it appears to be different in the Color Control utility, I do not understand but it might be worth trying the "manual" option for setting the default profile.
Check here too: right click on your desktop, select Properties, Settings, Advanced, Color Management.
The difficulty with all this is that XP does not properly support Colour Management for 2 monitors but the "Color Settings" utility helps by enabling on-the-fly switching.
I think, if you had 2 separate Video cards, you'd be better off. It is likely that the one card has just the one Look Up Table (LUT) to hold only one set of calibration data from a profile.
Hopefully a more experienced dual monitor colour managed user will come in in this one
In the mean time Google "xp dual monitor color management", there may be something there that helps.
Terry.