Photoshop CS5/Quicktime issue?

I recently purchased the new Samsung QX-series computer with Windows 7. I installed Photoshop CS5, which worked fine, until I wanted to import video as frames. It asked me to install Quicktime 7.1 or higher, which I promptly did. When I reopened Photoshop, it said that they couldn't find the QTCF.dll file. I deleted the extraneous QTCF.dll file so that the only one remaining is the one under the Quicktime folder, but it's still giving me that error (QTCF.dll file is missing/ couldn't find entry point to QTCF.dll). Anyone know how I can fix this?