So, we have an internal web app that pops up a window allowing our users to print their timecard. When it does pop this window up, it comes up completely blank. I have tried re-installing ie (8 initially and then we installed 9). I have also tried re-registering all of the DLLs associated with IE. At this point I am running SFC /scannow to see if a system file got corrupted, but don't know where to go next. Does anyone have any suggestions?