Series of problems: Dedicated Video Cards turning ON AND OFF

Question

Hi guys. It's been a long time. I'm back with yet some more problems.
After weeks of happiness with my wonderful computer (Toshiba Qosmio X305-Q706) I started finding some more issues with it. My laptop has three video cards as can be seen in this post: [Click ME].
One set is the integrated graphics card, an nVidia 9400M, and the other set consists of two dedicated nVidia 9800M GTX working in SLI.
What is the problem? At any given point the dedicated cards activate and deactivate continuously four or five times. This cycle can repeat itself two or up to four times a day.
Is that it? No. The set of cards are acticated&deactivated because the Windows Power Plans are being changed by an unkown agent. Whenever this thing starts it's because something is cycling through the power plans in an order I haven't bother to check but I know it goes through all three of them: Balanced, Power Saver and High Performance. I figured this out because while it was happening I had the Power Plan popup open and saw the radio buttons switching by themselves.
Is that it? No. When I wrote unkown agent, it wasn't so unkown. At one point I tried to run the Task Manager and keep a close eye on the list of processes running. Oh incredible is me. I found that for each time the power plan was changed, a process that went by "dllhost.exe" was causing the pain. See here:
At one point there were more than four of dllhosts. I looked it up and found that dllhost is a neutral Legit Microsoft file but can be manipulated to do "bad things". A few days later I still had the problem and checked the running processes with another program that replaces the task manager called "Free Extended Task Manager" by Extensoft. What surprised me was that when the thing was going on where there were supposed to be dllhosts therewere rundll32s instead. Should there still be rundll32 in Vista 64bit?
Sometimes, after the cycle is over, this error window will pop up:
I have no idea what it means. Sometimes it accompanies every turn the dedicated graphics set is trying to turn off. I suspect it pops up when the cards weren't able to shut down.
When I switch from the dedicated set back to the integrated card the fans won't shut down. Even after 12 hours they're still running at full speed and the air they're blowing out is practically cold.
That's all I gathered. I hope somebody can help out.

Answer 1

No, I am not saying it is bloatware.  Actually bloatware is anything that you don't need...
In this case I meant try that as a troubleshooting method.  If it is the case, then we can try reinstalling it.
You don't have to use the Tsohiba power management, or many other Toshiba software services.  It just comes down to if you need what those things do.  When they are working fine they don't seem to be CPU hogs so i usually leave them alone.  I did remove Toshiba power management on one laptop because it caused a problem and I was too lazy to do troubleshooting.  Also I was using the laptop as a desktop, always powered, so power management was not an issue.
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