Design Studio - Adding chart causes a blank page

Hello,

I have a serious problem. I created a few dashboards using DS 1.1 and 1.2 - dashboards with charts don't seem to work when running on server in IE (9 or 10).

If I remove the chart and save they work perfectly.

When running on BI LaunchPAD or Localy or on FireFox, They are working fine.

I created a DB for testing with only one DS and Chart and the same blank page.

Please help me if you can...

Thanks,

Eitan