More information - from the Outlook client on the same view, when trying to perform dynamic export I get an error:
<CrmScriptErrorReport>
<ReportVersion>1.0</ReportVersion>
<ScriptErrorDetails>
<Message>Unable to get property 'performExcelExport' of undefined or null reference</Message>
<Line>297</Line>
<URL>/_grid/print/export_dlg.aspx?DuplicateColumnsPresent=0&PageRecordCount=56&TotalRecordCount=56&isFetchFinal=1&multipage=0&oid=&otc=3&viewid=%7b4A0C8AD2-A91C-E211-B070-78E7D1623F9D%7d&viewtype=4230</URL>
<PageURL>/_grid/print/export_dlg.aspx?DuplicateColumnsPresent=0&PageRecordCount=56&TotalRecordCount=56&isFetchFinal=1&multipage=0&oid=&otc=3&viewid=%7b4A0C8AD2-A91C-E211-B070-78E7D1623F9D%7d&viewtype=4230</PageURL>
<Function>Ok(e)</Function>
<CallStack>
<Function>Ok(e)</Function>
</CallStack>
</ScriptErrorDetails>
<ClientInformation>
<BrowserUserAgent>Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.2; WOW64; Trident/6.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; Zune 4.7; InfoPath.3; Microsoft Outlook 15.0.4420; Microsoft Outlook 15.0.4420)</BrowserUserAgent>
<BrowserLanguage>en-US</BrowserLanguage>
<SystemLanguage>en-US</SystemLanguage>
<UserLanguage>en-US</UserLanguage>
<ScreenResolution>1440x900</ScreenResolution>
<ClientName>Outlook Laptop - Online</ClientName>
<ClientTime>2013-03-22T11:07:27</ClientTime>
</ClientInformation>
<ServerInformation>
<OrgLanguage>1033</OrgLanguage>
<OrgCulture>1033</OrgCulture>
<UserLanguage>1033</UserLanguage>
<UserCulture>1033</UserCulture>
<OrgID>{1BCBC5AB-9C12-4D8E-891C-ACE492DF613B}</OrgID>
<UserID>{55944824-C6F8-4F42-A9F1-4A58568B4C41}</UserID>
<CRMVersion>5.0.9690.3339</CRMVersion>
</ServerInformation>
</CrmScriptErrorReport>
