I use Windows 7 with RStudio 1.1.456. When I start the program it just shows a blank, white screen and the menu buttons on the top doesn't function. When I click them nothing shows up. Starting the program as administrator works and everything seems to load like normal. This is a new installation. We need to be able to run the program as a regular user, not with admin privileges. What causes this issue?
It is quite hard to tell what's causing this problem unless we can look at a diagnostics report. Any number of reasons could result in such problems (R itself may be missing or not installed right).
Could you check that if you installed the R (not Rstudio) prior to RStudio installation? You can download it from the official website.
If you installed and the problem persists, the diagnostic report may help.
You might also try installing the preview release to see if you have any better luck there.
We've had a number of reports of these issues over the past while, but still haven't yet been able to isolate the cause nor reproduce the issue in-house. Our best guess is that this is something permission-related (e.g. RStudio is unable to read/write some files it normally would); perhaps in the user's AppData\Local or AppData\Roaming folders.