Can't download/view certain pdf files in browser

Hello,
A client recently upgraded from Windows Server 2003 to Windows Server 2008 R2 (64-bit OS - IIS7). Now they are having a problem downloading and viewing PDF files that are larger that 1mg. They have two web sites - one in classic asp and one .NET application - neither will download and view the larger PDF files inside the browser. Any PDF under 1mg will open.
At first, the move from server 2003 to 2008 caused a lot of problems with these PDF files. Uploading was the first issue - but setting the file limit properties in II7 solved this. I don't think this issue has anything to do with that property as the file limit size is over 15 mg.
Hope I can get this resolved asap! Thanks in advance.
NELIXINCAsked:
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mcsweenSr. Network AdministratorCommented:
You need a hotfix for this

http://support.microsoft.com/kb/979543
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NELIXINCAuthor Commented:
mcsween - thanks! that did the trick.
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Windows Server 2008

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