RStudio Crashes on Startup

Hello All,

I am very new to RStudio and a few days ago it completely stopped working on my desktop. I have the latest version installed, have tried running it with software graphics, have uninstalled and reinstalled etc and nothing I do has gotten it working. It opens, hangs for a couple seconds, and then a windows error message pops up with no information, just "RStudio has stopped working." I wish I could provide more details but there is no real information to give. Has anyone experienced this before? Like I said, it was working fine and then one day it just stopped. I am on windows 7.

Thanks for any help I can get!