UFL 'u2ltdate.dll'....missing

I've been trying to open my company's P&L report and have been hitting some snags. First, my computer was updated to Windows 7 and I reinstalled CR XI and when I attempted to open the report I received a pop up that said "The saved data will be discarded since one or more formulas failed to compile". I pressed OK, the report opened and I don't have the preview, only the design view. I was told to upgrade to CR 2011. Now I'm not only getting the first pop up about my saved data, I am now getting a 2nd pop up.

When I refresh my data and am prompted for the dates I want, I enter the dates I need, press OK and get a pop up that says "UFL 'u2ltdate.dll' that implements this function is missing", I press OK and the Formula workshop opens. I didn't create this report and I'm not overly familiar with CR, I pretty much stumble through it, figure out what I need and presto! there's the report.

I have searched my computer for the .dll file I need, I have checked quite a few tech forums and have even called the number given to me by a tech support guy on the chat feature for SAP. The guy I spoke to over the phone told me to start a thread on here because he wasn't able to help me, even did a google search like I did.

Help!!