Internet Explorer 10 doesn't like SharePoint 2010

Well that's by default. You won't be able to do a few things on your IE10 when you access a SharePoint 2010 site.

To make it "like" SharePoint, you can add the SharePoint 2010 sites in the "Compatibility View Settings" of you IE10.

Steps:-

1. On your IE, go to Tools -> Compatibility Settings
2. Key in the "SharePoint site url" (if its not there) in the "Add this website" box
3. Click Add, then Close.
4. Refresh you page or restart IE.