Error Loading C:\WINNT\System32\NVMCTRAY.DLL

I recently put in a new video card.  I went from an nVidia to an ATI.  After the installation of the new card and software, I uninstalled the nVidia drivers and software via Add/Remove Programs.  Now everytime I boot the computer I get two error messages:  "Error Loading C:\WINNT\System32\NVMCTRAY.DLL" and "Error Loading C:\WINNT\System32\NvCpl.DLL."  I can guess that scvhost.exe or other such process is trying to load these .DLLs but not finding them.  How do I tell whatever is looking for them not to anymore?
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markoidConnect With a Mentor Commented:
Yea sound the the graphics card driver alright
Check the registry here HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
If the key is there delete it. there is usually two Nv****** references here remove em both
Or try regsvr32 /u NVMCTRAY.DLL and regsvr32 /u NvCpl.dll

One last option might be to install the driver again and uninstall it see if it comes out cleanly..

These are probably just obsolete registry entries that your pc is trying to load at start-up. You have a few options here:

1) Search for these entries in the registry manually and delete them, particularly when appearing under RUN keys - (can cause major, major - even huge pc-wrecking problems if you get this wrong - try at your own risk and ALWAYS back up your registry first). My recommendation is if you're not totally sure what you're doing - DON'T do it!

2) Use a registry cleaning utility (again though always back-up your registry first) some examples follow but there are loads of these around:
Registry Mechanicâ„¢ 3.0 for Windows (Not free)
RegSeeker - registry search tool
Registry cleaners

Hope this helps,

Deb :))
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