Reporting service is a powerful Sql Server tool for generating neat and robust reports. It has also good cross-browser compatibility except for some issues with IE8.In IE 8.0, report columns are cut off as they reach the maximum width of the control,so alignment of report in report viewer is not proper, etc.
To work around this we can set the meta tag inside the head section of the document to emulate IE7. This work-around is not limited to this particular issue of IE8 only but we can be used for solving general UI issues in IE8.
We can also try using different Quirk modes (DOC Type) of the browser for different issuesWikipedia has a good link on the different doctypes. http://en.wikipedia.org/wiki/Quirks_mode