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I am using a package called Sweave, in a program called R to run some statistical analysis and produce a tex file. Reproducible research and the like. Anyhow, this works great and I am having no problems until I try to include a figure.

The code I downloaded from a Professor in Germany, so it ...

The complete install worked.

Thank you everyone for all the help.

As much as I don't like the idea of putting all these packages that I will never use on my system, I think you're right. Especially considering it doesn't tell you what package is missing, and installing on the fly isn't working.

Should I uninstall the basic, and install the complete? Or use the ...

As gmedina pointed out, it wasn't keyval.sty but what loaded after that. The pfg package. Installing that got me one step further, but still with a compilation error.

I did reinstall MixTex last night, before I posted. My last error log was after I reinstalled MixTex and installed the beamer & pgf ...

I'm sorry that I didn't re-read that and try that before I posted.
Unfortunately that didn't seem to help. I installed pgf via the package manager, made sure i had ownership of that folder and reran.

I have attached the log file, the compiler now won't proceed past pgfsysprotocol.code.tex ...

But 'keyval.sty' isn't a downloadable package... and that's where the program is hanging.

I just checked, and keyval.sty is where it's supposed to be \tex\latex\graphics.
Is there a way to find out if this file is corrupted? I get the impression that it's part of the main MikTex distribution which ...

Thanks for the additional info.
I did the refresh, but I'm still getting a compile error.

This time at least it went past the beamerbaseoptions.sty and stopped on keyval.sty.

I've attached the updated log file.

I'm not quite clear on what you mean by the file name database.
I've used the package manager to install other packages without a problem..

Thanks, but I had already looked there. That's actually were I got the 'test' example from. While adding in the modification

\documentclass[hyperref={pdfpagelabels=false}]{beamer}
\let\Tiny=\tiny

Does get rid of a warning, the compilation still halts at the same location.

OS: Windows 7
Editor: TeXnic Center 1.0
Compiler: MiKTeX 2.8

I used the package manager to install the Beamer, and xcolor packages.
I have 'Install packages on the fly' set to Yes (even though sometimes that doesn't help and I have to manually install them using the manager).

Running the ...