On my sharepoint site I am unable to add an existing basic webpart to a page where I've added webparts before. I am a site owner. I am using IE 8. I also work remotely using VPN.
The strange thing is IE won't even open up the EDIT MODE.
When I use Google Chrome, it is able to open up EDIT MODE, and it was also able to open up the Add Web Part popup, but when you actually select a web part and press ADD…nothing gets added to the main page.
The extra strange thing is from Google Chrome, I am able to delete and modify existing webparts.
I've upgraded to IE 9 and the same issue still happens.
Best Answer
i assume the similar issue you would be facing with firefox it seems your css is not compliant with IE8 try using ie8 in campatibility mode or use following querystring parameter at end of ur url toolpaneview=2 and see what is the result