Drupal display problems on IE, limit to CSS files
If you have problems with your site displaying incorrectly on Microsoft's Internet Explorer (as usual) one of the first things to do is to check how many style sheets you have. Why? Because IE has a limit to the number of stlye sheets it loads, it will load only the first 31 style sheets.
The way around this problem is simple in Drupal, just enable the "Optimize CSS files" option. To do that log on as administrator, go to Administer, then the Performance page in the Site Congiguration admin group. Click the "Enable" radio button under Page compression.
The down side of this is that when you are developing you will have to clear the browser cache and refresh the page each time you change your CSS.
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