I recently updated to Internet Explorer 10. Sometimes when I am editing the text within a text box, the text is hidden. It is not deleted; it is just hidden. This most often happens when using the backspace key. I'll click into the text box, use the mouse the put my cursor at the end of the existing text, press backspace, and then the text is invisible. The text is still 'there', as I need to continue backspacing to delete additional characters, but this makes it difficult to see how much I need to backspace. I have also seen this behavior when typing new text into a text box.
Examples of where this has occurred:
SQL Server Reporting Services; I am often using the text box for the report name when creating a linked report. This always happens in this situation.
SharePoint; I am entering data into standard list item forms. This always happens in this situation.
Registering for Microsoft Connect; when I was editing my company name, I also saw the text disappear. I do not plan on trying this several times.
Also, I should mention that I am using the 150% DPI setting. I am using Windows 7 Professional, 64 bit.