Crystal reports viewer not displaying reports correctly in ie11

When rendering reports they come out jumbled with large spaces between everything, the reports work fine for other versions of IE. If i change the useragent string in ie11 to ie10 or below the page will render correctly. It seems as though this version of crystal reports does not recorgnise the ie11 user agent. I'm using CrystalDecisions.CrystalReports.Engine version 11.5.3700.0.

Can anyone advise of a solution?

thanks